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139010612 = 221321979137
BaseRepresentation
bin10000100100100…
…10001000110100
3100200120110201012
420102102020310
5241041314422
621443251352
73305366516
oct1022221064
9320513635
10139010612
1171516804
123a679b58
1322a51c00
1414667bb6
15c30d4e2
hex8492234

139010612 has 72 divisors (see below), whose sum is σ = 282844800. Its totient is φ = 59574528.

The previous prime is 139010611. The next prime is 139010617. The reversal of 139010612 is 216010931.

It is a happy number.

It is a super-2 number, since 2×1390106122 = 38647900497229088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139010611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1014608 + ... + 1014744.

It is an arithmetic number, because the mean of its divisors is an integer number (3928400).

Almost surely, 2139010612 is an apocalyptic number.

It is an amenable number.

139010612 is an abundant number, since it is smaller than the sum of its proper divisors (143834188).

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

139010612 is a wasteful number, since it uses less digits than its factorization.

139010612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 139010612 is about 11790.2761630082. The cubic root of 139010612 is about 518.0233289534.

The spelling of 139010612 in words is "one hundred thirty-nine million, ten thousand, six hundred twelve".

Divisors: 1 2 4 13 19 26 38 52 76 79 137 158 169 247 274 316 338 494 548 676 988 1027 1501 1781 2054 2603 3002 3211 3562 4108 5206 6004 6422 7124 10412 10823 12844 13351 19513 21646 23153 26702 33839 39026 43292 46306 53404 67678 78052 92612 135356 140699 205637 253669 281398 411274 439907 507338 562796 822548 879814 1014676 1759628 1829087 2673281 3658174 5346562 7316348 10693124 34752653 69505306 139010612