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137311138 = 21917320887
BaseRepresentation
bin10000010111100…
…11001110100010
3100120101010110201
420023303032202
5240122424023
621343015414
73255061006
oct1013631642
9316333421
10137311138
1170565988
1239b9a56a
13225a84c3
1414344706
15c0c4bad
hex82f33a2

137311138 has 16 divisors (see below), whose sum is σ = 218070720. Its totient is φ = 64663056.

The previous prime is 137311129. The next prime is 137311151. The reversal of 137311138 is 831113731.

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 7 ways as a sum of consecutive naturals, for example, 3870 + ... + 17017.

It is an arithmetic number, because the mean of its divisors is an integer number (13629420).

Almost surely, 2137311138 is an apocalyptic number.

137311138 is a deficient number, since it is larger than the sum of its proper divisors (80759582).

137311138 is a wasteful number, since it uses less digits than its factorization.

137311138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21081.

The product of its digits is 1512, while the sum is 28.

The square root of 137311138 is about 11717.9835296010. The cubic root of 137311138 is about 515.9036361324.

Adding to 137311138 its reverse (831113731), we get a palindrome (968424869).

The spelling of 137311138 in words is "one hundred thirty-seven million, three hundred eleven thousand, one hundred thirty-eight".

Divisors: 1 2 19 38 173 346 3287 6574 20887 41774 396853 793706 3613451 7226902 68655569 137311138