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157984164 = 22321319109163
BaseRepresentation
bin10010110101010…
…10010110100100
3102000021102112100
421122222112210
5310420443124
623402052100
73625562142
oct1132522644
9360242470
10157984164
11811a5928
1244aaa030
1326966070
1416da6592
15dd0a1c9
hex96aa5a4

157984164 has 144 divisors (see below), whose sum is σ = 459659200. Its totient is φ = 45349632.

The previous prime is 157984133. The next prime is 157984201. The reversal of 157984164 is 461489751.

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 47 ways as a sum of consecutive naturals, for example, 969147 + ... + 969309.

Almost surely, 2157984164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157984164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229829600).

157984164 is an abundant number, since it is smaller than the sum of its proper divisors (301675036).

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

157984164 is a wasteful number, since it uses less digits than its factorization.

157984164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 309 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 157984164 is about 12569.1751519342. The cubic root of 157984164 is about 540.5939555118.

The spelling of 157984164 in words is "one hundred fifty-seven million, nine hundred eighty-four thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 13 18 19 26 36 38 39 52 57 76 78 109 114 117 156 163 171 218 228 234 247 326 327 342 436 468 489 494 652 654 684 741 978 981 988 1308 1417 1467 1482 1956 1962 2071 2119 2223 2834 2934 2964 3097 3924 4142 4238 4251 4446 5668 5868 6194 6213 6357 8284 8476 8502 8892 9291 12388 12426 12714 12753 17004 17767 18582 18639 19071 24852 25428 25506 26923 27873 35534 37164 37278 38142 40261 51012 53301 53846 55746 71068 74556 76284 80522 80769 106602 107692 111492 120783 159903 161044 161538 213204 230971 241566 242307 319806 323076 337573 362349 461942 483132 484614 639612 675146 692913 724698 923884 969228 1012719 1350292 1385826 1449396 2025438 2078739 2771652 3038157 4050876 4157478 4388449 6076314 8314956 8776898 12152628 13165347 17553796 26330694 39496041 52661388 78992082 157984164