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13415936525 = 521573418073
BaseRepresentation
bin11000111111010011…
…01111001000001101
31021121222110012002222
430133221233020031
5204433434432100
610055130025125
7653313402365
oct143751571015
937558405088
1013415936525
115764a45752
122724b781a5
13135a602ca4
14913abb9a5
15537c12485
hex31fa6f20d

13415936525 has 12 divisors (see below), whose sum is σ = 16741726452. Its totient is φ = 10664384640.

The previous prime is 13415936519. The next prime is 13415936539. The reversal of 13415936525 is 52563951431.

It can be written as a sum of positive squares in 6 ways, for example, as 3097033801 + 10318902724 = 55651^2 + 101582^2 .

It is not a de Polignac number, because 13415936525 - 24 = 13415936509 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1705112 + ... + 1712961.

It is an arithmetic number, because the mean of its divisors is an integer number (1395143871).

Almost surely, 213415936525 is an apocalyptic number.

It is an amenable number.

13415936525 is a deficient number, since it is larger than the sum of its proper divisors (3325789927).

13415936525 is a wasteful number, since it uses less digits than its factorization.

13415936525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418240 (or 3418235 counting only the distinct ones).

The product of its digits is 486000, while the sum is 44.

The spelling of 13415936525 in words is "thirteen billion, four hundred fifteen million, nine hundred thirty-six thousand, five hundred twenty-five".

Divisors: 1 5 25 157 785 3925 3418073 17090365 85451825 536637461 2683187305 13415936525