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157139675 = 52711241181
BaseRepresentation
bin10010101110111…
…00001011011011
3101221200112002222
421113130023123
5310211432200
623332014255
73615444110
oct1127341333
9357615088
10157139675
1180779400
124476138b
132672b874
1416c26907
15dbded85
hex95dc2db

157139675 has 72 divisors (see below), whose sum is σ = 252129696. Its totient is φ = 95040000.

The previous prime is 157139641. The next prime is 157139681. The reversal of 157139675 is 576931751.

It is not a de Polignac number, because 157139675 - 28 = 157139419 is a prime.

Its product of digits (198450) is a multiple of the sum of its prime divisors (245).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 868085 + ... + 868265.

Almost surely, 2157139675 is an apocalyptic number.

157139675 is a deficient number, since it is larger than the sum of its proper divisors (94990021).

157139675 is a wasteful number, since it uses less digits than its factorization.

157139675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 245 counting only the distinct ones).

The product of its digits is 198450, while the sum is 44.

The square root of 157139675 is about 12535.5364863256. The cubic root of 157139675 is about 539.6290032883.

The spelling of 157139675 in words is "one hundred fifty-seven million, one hundred thirty-nine thousand, six hundred seventy-five".

Divisors: 1 5 7 11 25 35 41 55 77 121 175 181 205 275 287 385 451 605 847 905 1025 1267 1435 1925 1991 2255 3025 3157 4235 4525 4961 6335 7175 7421 9955 11275 13937 15785 21175 21901 24805 31675 34727 37105 49775 51947 69685 78925 81631 109505 124025 153307 173635 185525 259735 348425 408155 547525 571417 766535 868175 897941 1298675 2040775 2857085 3832675 4489705 6285587 14285425 22448525 31427935 157139675