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157070664 = 2334242393
BaseRepresentation
bin10010101110010…
…11010101001000
3101221120000110000
421113023111020
5310202230124
623330323000
73615035652
oct1127132510
9357500400
10157070664
1180731573
1244729460
132670632a
1416c096d2
15dbc96c9
hex95cb548

157070664 has 40 divisors (see below), whose sum is σ = 439945110. Its totient is φ = 52356672.

The previous prime is 157070651. The next prime is 157070731. The reversal of 157070664 is 466070751.

It can be written as a sum of positive squares in only one way, i.e., 150258564 + 6812100 = 12258^2 + 2610^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 120549 + ... + 121844.

Almost surely, 2157070664 is an apocalyptic number.

It is an amenable number.

157070664 is an abundant number, since it is smaller than the sum of its proper divisors (282874446).

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

157070664 is a wasteful number, since it uses less digits than its factorization.

157070664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242411 (or 242398 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 157070664 is about 12532.7835695028. The cubic root of 157070664 is about 539.5499954670.

The spelling of 157070664 in words is "one hundred fifty-seven million, seventy thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 242393 484786 727179 969572 1454358 1939144 2181537 2908716 4363074 5817432 6544611 8726148 13089222 17452296 19633833 26178444 39267666 52356888 78535332 157070664