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157066664 = 231371391031
BaseRepresentation
bin10010101110010…
…10010110101000
3101221112210221212
421113022112220
5310202113124
623330252252
73615021206
oct1127122650
9357483855
10157066664
1180729567
1244727088
1326704571
1416c08076
15dbc840e
hex95ca5a8

157066664 has 32 divisors (see below), whose sum is σ = 299073600. Its totient is φ = 77324160.

The previous prime is 157066661. The next prime is 157066667. The reversal of 157066664 is 466660751.

It is an interprime number because it is at equal distance from previous prime (157066661) and next prime (157066667).

It is not an unprimeable number, because it can be changed into a prime (157066661) 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 7 ways as a sum of consecutive naturals, for example, 151829 + ... + 152859.

It is an arithmetic number, because the mean of its divisors is an integer number (9346050).

Almost surely, 2157066664 is an apocalyptic number.

It is an amenable number.

157066664 is a deficient number, since it is larger than the sum of its proper divisors (142006936).

157066664 is a wasteful number, since it uses less digits than its factorization.

157066664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 157066664 is about 12532.6239870188. The cubic root of 157066664 is about 539.5454153240.

The spelling of 157066664 in words is "one hundred fifty-seven million, sixty-six thousand, six hundred sixty-four".

Divisors: 1 2 4 8 137 139 274 278 548 556 1031 1096 1112 2062 4124 8248 19043 38086 76172 141247 143309 152344 282494 286618 564988 573236 1129976 1146472 19633333 39266666 78533332 157066664