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12928046125 = 53131839941
BaseRepresentation
bin11000000101001001…
…00101010000101101
31020100222101210022011
430002210211100231
5202434034434000
65534500521221
7635240402401
oct140244452055
936328353264
1012928046125
1155345aa445
1226096b0211
1312b04caa47
148a8d99101
15509e8c2ba
hex30292542d

12928046125 has 32 divisors (see below), whose sum is σ = 16294037760. Its totient is φ = 10240360000.

The previous prime is 12928046113. The next prime is 12928046129. The reversal of 12928046125 is 52164082921.

It is a happy number.

It is not a de Polignac number, because 12928046125 - 217 = 12927915053 is a prime.

It is a super-2 number, since 2×129280461252 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12928046129) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 13738155 + ... + 13739095.

It is an arithmetic number, because the mean of its divisors is an integer number (509188680).

Almost surely, 212928046125 is an apocalyptic number.

It is an amenable number.

12928046125 is a deficient number, since it is larger than the sum of its proper divisors (3365991635).

12928046125 is an equidigital number, since it uses as much as digits as its factorization.

12928046125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926 (or 1916 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 12928046125 in words is "twelve billion, nine hundred twenty-eight million, forty-six thousand, one hundred twenty-five".

Divisors: 1 5 25 125 131 655 839 941 3275 4195 4705 16375 20975 23525 104875 109909 117625 123271 549545 616355 789499 2747725 3081775 3947495 13738625 15408875 19737475 98687375 103424369 517121845 2585609225 12928046125