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12949075725 = 352172654343
BaseRepresentation
bin11000000111101001…
…10011011100001101
31020102102222012111020
430003310303130031
5203004430410400
65540531344353
7635614220235
oct140364633415
936372865436
1012949075725
115545463283
1226147520b9
1312b49819b1
148abab0cc5
1550bc432a0
hex303d3370d

12949075725 has 12 divisors (see below), whose sum is σ = 21409138656. Its totient is φ = 6906173680.

The previous prime is 12949075723. The next prime is 12949075787. The reversal of 12949075725 is 52757094921.

12949075725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12949075725 - 21 = 12949075723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12949075723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86327097 + ... + 86327246.

It is an arithmetic number, because the mean of its divisors is an integer number (1784094888).

Almost surely, 212949075725 is an apocalyptic number.

12949075725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12949075725 is a deficient number, since it is larger than the sum of its proper divisors (8460062931).

12949075725 is a wasteful number, since it uses less digits than its factorization.

12949075725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172654356 (or 172654351 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 51.

The spelling of 12949075725 in words is "twelve billion, nine hundred forty-nine million, seventy-five thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 75 172654343 517963029 863271715 2589815145 4316358575 12949075725