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157090452 = 22373179327
BaseRepresentation
bin10010101110100…
…00001010010100
3101221121000120220
421113100022110
5310203343302
623330554340
73615150441
oct1127201224
9357530526
10157090452
1180745422
12447389b0
132671233c
1416c129c8
15dbd04bc
hex95d0294

157090452 has 24 divisors (see below), whose sum is σ = 371567616. Its totient is φ = 51645888.

The previous prime is 157090447. The next prime is 157090487. The reversal of 157090452 is 254090751.

157090452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 88788 + ... + 90539.

It is an arithmetic number, because the mean of its divisors is an integer number (15481984).

Almost surely, 2157090452 is an apocalyptic number.

157090452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157090452 is an abundant number, since it is smaller than the sum of its proper divisors (214477164).

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

157090452 is a wasteful number, since it uses less digits than its factorization.

157090452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179407 (or 179405 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 157090452 is about 12533.5729941625. The cubic root of 157090452 is about 539.5726522906.

The spelling of 157090452 in words is "one hundred fifty-seven million, ninety thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 73 146 219 292 438 876 179327 358654 537981 717308 1075962 2151924 13090871 26181742 39272613 52363484 78545226 157090452