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157090556 = 22719295283
BaseRepresentation
bin10010101110100…
…00001011111100
3101221121000201202
421113100023330
5310203344211
623330555032
73615150650
oct1127201374
9357530652
10157090556
1180745507
1244738a78
13267123bc
1416c12a60
15dbd053b
hex95d02fc

157090556 has 24 divisors (see below), whose sum is σ = 330718080. Its totient is φ = 63780912.

The previous prime is 157090543. The next prime is 157090559. The reversal of 157090556 is 655090751.

157090556 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157090559) 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, 147110 + ... + 148173.

It is an arithmetic number, because the mean of its divisors is an integer number (13779920).

Almost surely, 2157090556 is an apocalyptic number.

It is an amenable number.

157090556 is an abundant number, since it is smaller than the sum of its proper divisors (173627524).

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

157090556 is a wasteful number, since it uses less digits than its factorization.

157090556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295313 (or 295311 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 157090556 is about 12533.5771430187. The cubic root of 157090556 is about 539.5727713633.

The spelling of 157090556 in words is "one hundred fifty-seven million, ninety thousand, five hundred fifty-six".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 295283 590566 1181132 2066981 4133962 5610377 8267924 11220754 22441508 39272639 78545278 157090556