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137912412 = 223112194999
BaseRepresentation
bin10000011100001…
…10000001011100
3100121111200021010
420032012001130
5240301144122
621403535220
73263144001
oct1016060134
9317450233
10137912412
1170936700
123a22a510
13227590a1
141445d8a8
15c192e0c
hex838605c

137912412 has 72 divisors (see below), whose sum is σ = 372400000. Its totient is φ = 39584160.

The previous prime is 137912389. The next prime is 137912417. The reversal of 137912412 is 214219731.

It is a super-3 number, since 3×1379124123 (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 137912412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137912417) 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, 25089 + ... + 30087.

Almost surely, 2137912412 is an apocalyptic number.

137912412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137912412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186200000).

137912412 is an abundant number, since it is smaller than the sum of its proper divisors (234487588).

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

137912412 is a wasteful number, since it uses less digits than its factorization.

137912412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047 (or 5034 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 137912412 is about 11743.6115398969. The cubic root of 137912412 is about 516.6555726141.

The spelling of 137912412 in words is "one hundred thirty-seven million, nine hundred twelve thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 19 22 33 38 44 57 66 76 114 121 132 209 228 242 363 418 484 627 726 836 1254 1452 2299 2508 4598 4999 6897 9196 9998 13794 14997 19996 27588 29994 54989 59988 94981 109978 164967 189962 219956 284943 329934 379924 569886 604879 659868 1044791 1139772 1209758 1814637 2089582 2419516 3134373 3629274 4179164 6268746 7258548 11492701 12537492 22985402 34478103 45970804 68956206 137912412