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15125025253 = 1311310296137
BaseRepresentation
bin11100001011000010…
…11001000111100101
31110001002101220002111
432011201121013211
5221434001302003
610540501441021
71043545410352
oct160541310745
943032356074
1015125025253
116461756378
122b21410171
1315707123b0
14a36a8b629
155d7cade6d
hex3858591e5

15125025253 has 8 divisors (see below), whose sum is σ = 16432636248. Its totient is φ = 13838006784.

The previous prime is 15125025233. The next prime is 15125025269. The reversal of 15125025253 is 35252052151.

It can be written as a sum of positive squares in 4 ways, for example, as 245172964 + 14879852289 = 15658^2 + 121983^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15125025253 - 217 = 15124894181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15125025203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5146600 + ... + 5149537.

It is an arithmetic number, because the mean of its divisors is an integer number (2054079531).

Almost surely, 215125025253 is an apocalyptic number.

15125025253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15125025253 is a deficient number, since it is larger than the sum of its proper divisors (1307610995).

15125025253 is a wasteful number, since it uses less digits than its factorization.

15125025253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10296263.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 15125025253 in words is "fifteen billion, one hundred twenty-five million, twenty-five thousand, two hundred fifty-three".

Divisors: 1 13 113 1469 10296137 133849781 1163463481 15125025253