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12952420925 = 522572015941
BaseRepresentation
bin11000001000000011…
…00100001000111101
31020102200021011020112
430010001210020331
5203011304432200
65541131155405
7635654522063
oct140401441075
936380234215
1012952420925
115547338604
1226158a5b65
1312b55834c2
148ac302033
1550c1a4535
hex30406423d

12952420925 has 12 divisors (see below), whose sum is σ = 16123504116. Its totient is φ = 10321612800.

The previous prime is 12952420903. The next prime is 12952420927. The reversal of 12952420925 is 52902425921.

It can be written as a sum of positive squares in 6 ways, for example, as 1352915524 + 11599505401 = 36782^2 + 107701^2 .

It is not a de Polignac number, because 12952420925 - 26 = 12952420861 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12952420927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1001546 + ... + 1014395.

It is an arithmetic number, because the mean of its divisors is an integer number (1343625343).

Almost surely, 212952420925 is an apocalyptic number.

It is an amenable number.

12952420925 is a deficient number, since it is larger than the sum of its proper divisors (3171083191).

12952420925 is a wasteful number, since it uses less digits than its factorization.

12952420925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016208 (or 2016203 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 12952420925 in words is "twelve billion, nine hundred fifty-two million, four hundred twenty thousand, nine hundred twenty-five".

Divisors: 1 5 25 257 1285 6425 2015941 10079705 50398525 518096837 2590484185 12952420925