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137157188 = 22723892393
BaseRepresentation
bin10000010110011…
…01101001000100
3100120002022021212
420023031221010
5240103012223
621335430552
73253550120
oct1013155104
9316068255
10137157188
1170470253
1239b25458
13225533cc
1414304580
15c094278
hex82cda44

137157188 has 48 divisors (see below), whose sum is σ = 289578240. Its totient is φ = 55570944.

The previous prime is 137157179. The next prime is 137157191. The reversal of 137157188 is 881751731.

It is a happy number.

It is a zygodrome in base 13.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56120 + ... + 58512.

It is an arithmetic number, because the mean of its divisors is an integer number (6032880).

Almost surely, 2137157188 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 137157188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144789120).

137157188 is an abundant number, since it is smaller than the sum of its proper divisors (152421052).

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

137157188 is a wasteful number, since it uses less digits than its factorization.

137157188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516 (or 2514 counting only the distinct ones).

The product of its digits is 47040, while the sum is 41.

The square root of 137157188 is about 11711.4127243471. The cubic root of 137157188 is about 515.7107577129.

The spelling of 137157188 in words is "one hundred thirty-seven million, one hundred fifty-seven thousand, one hundred eighty-eight".

Divisors: 1 2 4 7 14 23 28 46 89 92 161 178 322 356 623 644 1246 2047 2393 2492 4094 4786 8188 9572 14329 16751 28658 33502 55039 57316 67004 110078 212977 220156 385273 425954 770546 851908 1490839 1541092 2981678 4898471 5963356 9796942 19593884 34289297 68578594 137157188