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13125412502 = 240116365851
BaseRepresentation
bin11000011100101010…
…11110011010010110
31020212201210001001222
430032111132122112
5203340101200002
610010231050342
7643155110516
oct141625363226
936781701058
1013125412502
115625a53754
1226638109b2
131312372397
148c7293846
1551c4761a2
hex30e55e696

13125412502 has 8 divisors (see below), whose sum is σ = 19737217512. Its totient is φ = 6546340000.

The previous prime is 13125412501. The next prime is 13125412511. The reversal of 13125412502 is 20521452131.

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

It is a super-4 number, since 4×131254125024 (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125412501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8182124 + ... + 8183727.

It is an arithmetic number, because the mean of its divisors is an integer number (2467152189).

Almost surely, 213125412502 is an apocalyptic number.

13125412502 is a deficient number, since it is larger than the sum of its proper divisors (6611805010).

13125412502 is a wasteful number, since it uses less digits than its factorization.

13125412502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16366254.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 13125412502 its reverse (20521452131), we get a palindrome (33646864633).

The spelling of 13125412502 in words is "thirteen billion, one hundred twenty-five million, four hundred twelve thousand, five hundred two".

Divisors: 1 2 401 802 16365851 32731702 6562706251 13125412502