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156680292 = 22313056691
BaseRepresentation
bin10010101011011…
…00000001100100
3101220211011221210
421111230001210
5310102232132
623314111420
73611521566
oct1125540144
9356734853
10156680292
118049524a
124457b570
13265ca742
1416b47336
15db4dbcc
hex956c064

156680292 has 12 divisors (see below), whose sum is σ = 365587376. Its totient is φ = 52226760.

The previous prime is 156680257. The next prime is 156680299. The reversal of 156680292 is 292086651.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 156680292.

It is not an unprimeable number, because it can be changed into a prime (156680299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6528334 + ... + 6528357.

Almost surely, 2156680292 is an apocalyptic number.

156680292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

156680292 is an abundant number, since it is smaller than the sum of its proper divisors (208907084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156680292 is a wasteful number, since it uses less digits than its factorization.

156680292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13056698 (or 13056696 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 156680292 is about 12517.1998466111. The cubic root of 156680292 is about 539.1026385521.

The spelling of 156680292 in words is "one hundred fifty-six million, six hundred eighty thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 13056691 26113382 39170073 52226764 78340146 156680292