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140372169 = 376799767
BaseRepresentation
bin10000101110111…
…10100011001001
3100210010122102020
420113132203021
5241413402134
621532355053
73323100210
oct1027364311
9323118366
10140372169
1172266763
123b015a89
132310a872
1414900077
15c4cbb49
hex85de8c9

140372169 has 16 divisors (see below), whose sum is σ = 217095168. Its totient is φ = 79014672.

The previous prime is 140372149. The next prime is 140372189. The reversal of 140372169 is 961273041.

140372169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140372149) and next prime (140372189).

It is not a de Polignac number, because 140372169 - 212 = 140368073 is a prime.

It is a super-2 number, since 2×1403721692 = 39408691659529122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140372119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48477 + ... + 51290.

It is an arithmetic number, because the mean of its divisors is an integer number (13568448).

Almost surely, 2140372169 is an apocalyptic number.

It is an amenable number.

140372169 is a deficient number, since it is larger than the sum of its proper divisors (76722999).

140372169 is an equidigital number, since it uses as much as digits as its factorization.

140372169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99844.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 140372169 is about 11847.8761387854. The cubic root of 140372169 is about 519.7091186266.

The spelling of 140372169 in words is "one hundred forty million, three hundred seventy-two thousand, one hundred sixty-nine".

Divisors: 1 3 7 21 67 201 469 1407 99767 299301 698369 2095107 6684389 20053167 46790723 140372169