Search a number
-
+
137967904 = 255381349
BaseRepresentation
bin10000011100100…
…11100100100000
3100121121111101101
420032103210200
5240304433104
621405044144
73263464534
oct1016234440
9317544341
10137967904
1170974368
123a256654
1322778419
1414475bc4
15c1a45a4
hex8393920

137967904 has 24 divisors (see below), whose sum is σ = 276752700. Its totient is φ = 67681536.

The previous prime is 137967859. The next prime is 137967913. The reversal of 137967904 is 409769731.

It can be written as a sum of positive squares in 2 ways, for example, as 130416400 + 7551504 = 11420^2 + 2748^2 .

It is a super-3 number, since 3×1379679043 (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38979 + ... + 42370.

Almost surely, 2137967904 is an apocalyptic number.

It is an amenable number.

137967904 is an abundant number, since it is smaller than the sum of its proper divisors (138784796).

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

137967904 is an equidigital number, since it uses as much as digits as its factorization.

137967904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81412 (or 81404 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 137967904 is about 11745.9739485493. The cubic root of 137967904 is about 516.7248591178.

The spelling of 137967904 in words is "one hundred thirty-seven million, nine hundred sixty-seven thousand, nine hundred four".

Divisors: 1 2 4 8 16 32 53 106 212 424 848 1696 81349 162698 325396 650792 1301584 2603168 4311497 8622994 17245988 34491976 68983952 137967904