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137838788 = 221717311717
BaseRepresentation
bin10000011011101…
…00000011000100
3100121100221021022
420031310003010
5240241320123
621402210312
73262416233
oct1015640304
9317327238
10137838788
117089635a
123a1b3998
1322731719
1414440b1a
15c17b1c8
hex83740c4

137838788 has 24 divisors (see below), whose sum is σ = 256905432. Its totient is φ = 64484864.

The previous prime is 137838773. The next prime is 137838859. The reversal of 137838788 is 887838731.

137838788 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 22963264 + 114875524 = 4792^2 + 10718^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5906 + ... + 17622.

It is an arithmetic number, because the mean of its divisors is an integer number (10704393).

Almost surely, 2137838788 is an apocalyptic number.

It is an amenable number.

137838788 is a deficient number, since it is larger than the sum of its proper divisors (119066644).

137838788 is a wasteful number, since it uses less digits than its factorization.

137838788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11911 (or 11909 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 53.

The square root of 137838788 is about 11740.4764809611. The cubic root of 137838788 is about 516.5636180656.

The spelling of 137838788 in words is "one hundred thirty-seven million, eight hundred thirty-eight thousand, seven hundred eighty-eight".

Divisors: 1 2 4 17 34 68 173 346 692 2941 5882 11717 11764 23434 46868 199189 398378 796756 2027041 4054082 8108164 34459697 68919394 137838788