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137107128 = 23329196993
BaseRepresentation
bin10000010110000…
…01011010111000
3100112222202121210
420023001122320
5240044412003
621334403120
73253251144
oct1013013270
9315882553
10137107128
1170436684
1239b004a0
13225366a2
14142d0224
15c084503
hex82c16b8

137107128 has 32 divisors (see below), whose sum is σ = 354589200. Its totient is φ = 44126208.

The previous prime is 137107127. The next prime is 137107133. The reversal of 137107128 is 821701731.

It is a junction number, because it is equal to n+sod(n) for n = 137107095 and 137107104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137107123) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 97801 + ... + 99192.

Almost surely, 2137107128 is an apocalyptic number.

It is an amenable number.

137107128 is an abundant number, since it is smaller than the sum of its proper divisors (217482072).

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

137107128 is a wasteful number, since it uses less digits than its factorization.

137107128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197031 (or 197027 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 137107128 is about 11709.2752978141. The cubic root of 137107128 is about 515.6480082442.

Adding to 137107128 its reverse (821701731), we get a palindrome (958808859).

The spelling of 137107128 in words is "one hundred thirty-seven million, one hundred seven thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 29 58 87 116 174 232 348 696 196993 393986 590979 787972 1181958 1575944 2363916 4727832 5712797 11425594 17138391 22851188 34276782 45702376 68553564 137107128