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12400132494 = 2331306721737
BaseRepresentation
bin10111000110001101…
…10000000110001110
31012000012000222221110
423203012300012032
5200343413214434
65410241512450
7616200246531
oct134306600616
935005028843
1012400132494
115293608092
1224a0942726
131228021509
14858c18a18
154c895d4e9
hex2e31b018e

12400132494 has 32 divisors (see below), whose sum is σ = 25609798656. Its totient is φ = 3998554560.

The previous prime is 12400132471. The next prime is 12400132513. The reversal of 12400132494 is 49423100421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559594 + ... + 581330.

It is an arithmetic number, because the mean of its divisors is an integer number (800306208).

Almost surely, 212400132494 is an apocalyptic number.

12400132494 is an abundant number, since it is smaller than the sum of its proper divisors (13209666162).

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

12400132494 is a wasteful number, since it uses less digits than its factorization.

12400132494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24840.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 12400132494 in words is "twelve billion, four hundred million, one hundred thirty-two thousand, four hundred ninety-four".

Divisors: 1 2 3 6 31 62 93 186 3067 6134 9201 18402 21737 43474 65211 95077 130422 190154 285231 570462 673847 1347694 2021541 4043082 66667379 133334758 200002137 400004274 2066688749 4133377498 6200066247 12400132494