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157118922 = 232731091097
BaseRepresentation
bin10010101110101…
…11000111001010
3101221122110122100
421113113013022
5310210301142
623331334230
73615326442
oct1127270712
9357573570
10157118922
1180764854
1244751376
132672229c
1416c1d122
15dbd8b4c
hex95d71ca

157118922 has 48 divisors (see below), whose sum is σ = 348571080. Its totient is φ = 51134976.

The previous prime is 157118921. The next prime is 157118959. The reversal of 157118922 is 229811751.

It is a happy number.

157118922 is a `hidden beast` number, since 1 + 571 + 1 + 89 + 2 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 136679481 + 20439441 = 11691^2 + 4521^2 .

It is not an unprimeable number, because it can be changed into a prime (157118921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142678 + ... + 143774.

Almost surely, 2157118922 is an apocalyptic number.

157118922 is an abundant number, since it is smaller than the sum of its proper divisors (191452158).

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

157118922 is a wasteful number, since it uses less digits than its factorization.

157118922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287 (or 1284 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 157118922 is about 12534.7086922672. The cubic root of 157118922 is about 539.6052464750.

The spelling of 157118922 in words is "one hundred fifty-seven million, one hundred eighteen thousand, nine hundred twenty-two".

Divisors: 1 2 3 6 9 18 73 109 146 218 219 327 438 654 657 981 1097 1314 1962 2194 3291 6582 7957 9873 15914 19746 23871 47742 71613 80081 119573 143226 160162 239146 240243 358719 480486 717438 720729 1076157 1441458 2152314 8728829 17457658 26186487 52372974 78559461 157118922