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157162252 = 221329891171
BaseRepresentation
bin10010101111000…
…01101100001100
3101221201200002011
421113201230030
5310213143002
623332311004
73615566662
oct1127415414
9357650064
10157162252
1180794365
1244772464
1326738c20
1416c30c32
15dbe68d7
hex95e1b0c

157162252 has 48 divisors (see below), whose sum is σ = 310111200. Its totient is φ = 69189120.

The previous prime is 157162237. The next prime is 157162259. The reversal of 157162252 is 252261751.

It is not an unprimeable number, because it can be changed into a prime (157162259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133627 + ... + 134797.

It is an arithmetic number, because the mean of its divisors is an integer number (6460650).

Almost surely, 2157162252 is an apocalyptic number.

It is an amenable number.

157162252 is a deficient number, since it is larger than the sum of its proper divisors (152948948).

157162252 is a wasteful number, since it uses less digits than its factorization.

157162252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306 (or 1304 counting only the distinct ones).

The product of its digits is 8400, while the sum is 31.

The square root of 157162252 is about 12536.4369738774. The cubic root of 157162252 is about 539.6548457340.

It can be divided in two parts, 157 and 162252, that added together give a square (162409 = 4032).

The spelling of 157162252 in words is "one hundred fifty-seven million, one hundred sixty-two thousand, two hundred fifty-two".

Divisors: 1 2 4 13 26 29 52 58 89 116 178 356 377 754 1157 1171 1508 2314 2342 2581 4628 4684 5162 10324 15223 30446 33553 33959 60892 67106 67918 104219 134212 135836 208438 416876 441467 882934 1354847 1765868 2709694 3022351 5419388 6044702 12089404 39290563 78581126 157162252