140 (number)

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140 is the natural number following 139 and preceding 141.

List of numbers — Integers << 100 110 120 130 140 150 160 170 180 190 >>
Cardinal	One hundred [and] forty
Ordinal	140th
Factorization
Divisors	2, 5, 7, 10, 20, 28, 35, 70
Roman numeral	CXL
Binary	10001100
Hexadecimal	82

140 is an abundant number and a harmonic divisor number. It is the sum of the squares of the first seven integers, which makes it a square pyramidal number.

One hundred forty is also:

• The designation of some spur routes of Interstate 40.
• The age Job died at (Holy Bible, Job 42:16).
• The year AD 140 or 140 BC.

Other numbers in the 140s

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One hundred forty-one (141, CXLI) is the natural number following one hundred forty and preceding one hundred forty-two. It is a composite number, and its factorization is One hundred forty-one is also:

• The year AD 141 or 141 BC.

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One hundred forty-two has its own article

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One hundred forty-three (143, CXLIII) is the natural number following one hundred forty-two and preceding one hundred forty-four. It is a composite number, and its factorization is This number is the sum of three consecutive primes (43 + 47 + 53), as well as the sum of seven consecutive primes (11 + 13 + 17 + 19 + 23 + 29 + 31).

One hundred forty-three is also:

• The year AD 143 or 143 BC.

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One hundred forty-four is its own article

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One hundred forty-five (145, CXLV) is the natural number following one hundred forty-four and preceding one hundred forty-six. It is a composite number, and its factorization is Given 145, the Mertens function returns 0.

Written in base 10, the digits of this number add up to it, like so: 145 = 1! + 4! + 5! = 1 + 24 + 120 = 145.

One hundred forty-five is also:

• The year AD 145 or 145 BC.

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One hundred forty-six (146, CXLVI) is the natural number following one hundred forty-five and preceding one hundred forty-six. It is a triangular number and an octahedral number as well as a composite number, and its factorization is One hundred forty-six is also:

• The year AD 146 or 146 BC.

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One hundred forty-seven (147, CXLVII) is the natural number following one hundred forty-six and preceding one hundred forty-eight. It is a composite number, and its factorization is One hundred forty-seven is also:

• The year AD 147 or 147 BC.
• The maximum possible score in a single break in snooker, excluding penalty points.

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One hundred forty-eight (148, CXLVIII) is the natural number following one hundred forty-seven and preceding one hundred forty-eight. It is a heptagonal number. It is a composite number, and its factorization One hundred forty-eight is also:

• The number of singers, sons of Asaph, at the Census of men of Israel upon return from exile (Holy Bible, Nehemiah 7:44).
• The year AD 148 or 148 BC.

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One hundred forty-nine (149, CXLIX) is the natural number following one hundred forty-eight and preceding one hundred fifty. It is the 35th prime number, the next is one hundred fifty-one, with which it comprises a twin prime. Given 149, the Mertens function returns 0. 149 is a tribonacci number.

One hundred forty-nine is also:

• The year AD 149 or 149 BC.