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12504606976 = 282922412
BaseRepresentation
bin10111010010101010…
…10010100100000000
31012021110121211222201
423221111102210000
5201102134410401
65424453042544
7621606256051
oct135125224400
935243554881
1012504606976
115337585334
12250b926454
131243870834
14868a52728
154d2be8b01
hex2e9552900

12504606976 has 81 divisors (see below), whose sum is σ = 25958459163. Its totient is φ = 6011658240.

The previous prime is 12504606943. The next prime is 12504606991. The reversal of 12504606976 is 67960640521.

The square root of 12504606976 is 111824.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1012766976 + 11491840000 = 31824^2 + 107200^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 51886216 + ... + 51886456.

Almost surely, 212504606976 is an apocalyptic number.

12504606976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12504606976 is the 111824-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12504606976

12504606976 is an abundant number, since it is smaller than the sum of its proper divisors (13453852187).

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

12504606976 is an frugal number, since it uses more digits than its factorization.

12504606976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 12504606976 in words is "twelve billion, five hundred four million, six hundred six thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 16 29 32 58 64 116 128 232 241 256 464 482 841 928 964 1682 1856 1928 3364 3712 3856 6728 6989 7424 7712 13456 13978 15424 26912 27956 30848 53824 55912 58081 61696 107648 111824 116162 202681 215296 223648 232324 405362 447296 464648 810724 894592 929296 1621448 1684349 1789184 1858592 3242896 3368698 3717184 6485792 6737396 7434368 12971584 13474792 14868736 25943168 26949584 48846121 51886336 53899168 97692242 107798336 195384484 215596672 390768968 431193344 781537936 1563075872 3126151744 6252303488 12504606976