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157094231 = 7221310141
BaseRepresentation
bin10010101110100…
…01000101010111
3101221121012202212
421113101011113
5310204003411
623331024035
73615164450
oct1127210527
9357535685
10157094231
1180748248
124473b01b
1326713c88
1416c14127
15dbd168b
hex95d1157

157094231 has 8 divisors (see below), whose sum is σ = 179635104. Its totient is φ = 134578080.

The previous prime is 157094227. The next prime is 157094233. The reversal of 157094231 is 132490751.

157094231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 157094231 - 22 = 157094227 is a prime.

It is a super-2 number, since 2×1570942312 = 49357194826962722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157094233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10421 + ... + 20561.

It is an arithmetic number, because the mean of its divisors is an integer number (22454388).

Almost surely, 2157094231 is an apocalyptic number.

157094231 is a deficient number, since it is larger than the sum of its proper divisors (22540873).

157094231 is a wasteful number, since it uses less digits than its factorization.

157094231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12361.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 157094231 is about 12533.7237483519. The cubic root of 157094231 is about 539.5769789459.

The spelling of 157094231 in words is "one hundred fifty-seven million, ninety-four thousand, two hundred thirty-one".

Divisors: 1 7 2213 10141 15491 70987 22442033 157094231