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157364772 = 22320116521
BaseRepresentation
bin10010110000100…
…11001000100100
3101222002221212220
421120103020210
5310241133042
623340512340
73620402265
oct1130231044
9358087786
10157364772
1180912534
124484b6b0
13267aa166
1416c8496c
15dc368ec
hex9613224

157364772 has 24 divisors (see below), whose sum is σ = 367423392. Its totient is φ = 52420800.

The previous prime is 157364771. The next prime is 157364803. The reversal of 157364772 is 277463751.

It is a super-2 number, since 2×1573647722 = 49527342933223968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (157364771) 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, 20872 + ... + 27392.

It is an arithmetic number, because the mean of its divisors is an integer number (15309308).

Almost surely, 2157364772 is an apocalyptic number.

157364772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157364772 is an abundant number, since it is smaller than the sum of its proper divisors (210058620).

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

157364772 is a wasteful number, since it uses less digits than its factorization.

157364772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8539 (or 8537 counting only the distinct ones).

The product of its digits is 246960, while the sum is 42.

The square root of 157364772 is about 12544.5116285968. The cubic root of 157364772 is about 539.8865468100.

The spelling of 157364772 in words is "one hundred fifty-seven million, three hundred sixty-four thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 2011 4022 6033 6521 8044 12066 13042 19563 24132 26084 39126 78252 13113731 26227462 39341193 52454924 78682386 157364772