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12490140924 = 2233176802909
BaseRepresentation
bin10111010000111100…
…00110110011111100
31012020110101220022000
423220132012303330
5201034434002144
65423215022300
7621342306012
oct135036066374
935213356260
1012490140924
11532a3a4818
122506b0a990
131240877241
14866b688b2
154d17dc769
hex2e8786cfc

12490140924 has 48 divisors (see below), whose sum is σ = 34286666400. Its totient is φ = 3918475008.

The previous prime is 12490140919. The next prime is 12490140953. The reversal of 12490140924 is 42904109421.

12490140924 is a `hidden beast` number, since 1 + 2 + 490 + 140 + 9 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3399619 + ... + 3403290.

It is an arithmetic number, because the mean of its divisors is an integer number (714305550).

Almost surely, 212490140924 is an apocalyptic number.

It is an amenable number.

12490140924 is an abundant number, since it is smaller than the sum of its proper divisors (21796525476).

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

12490140924 is a wasteful number, since it uses less digits than its factorization.

12490140924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6802939 (or 6802931 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 12490140924 in words is "twelve billion, four hundred ninety million, one hundred forty thousand, nine hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 17 18 27 34 36 51 54 68 102 108 153 204 306 459 612 918 1836 6802909 13605818 20408727 27211636 40817454 61226181 81634908 115649453 122452362 183678543 231298906 244904724 346948359 367357086 462597812 693896718 734714172 1040845077 1387793436 2081690154 3122535231 4163380308 6245070462 12490140924