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12513873 = 39743003
BaseRepresentation
bin101111101111…
…001001010001
3212112202210210
4233233021101
511200420443
61124114333
7211236411
oct57571121
925482723
1012513873
117077949
1242359a9
132791b78
14193a641
151172c33
hexbef251

12513873 has 8 divisors (see below), whose sum is σ = 16857568. Its totient is φ = 8256384.

The previous prime is 12513869. The next prime is 12513889. The reversal of 12513873 is 37831521.

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

It is not a de Polignac number, because 12513873 - 22 = 12513869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12513873.

It is not an unprimeable number, because it can be changed into a prime (12513373) 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, 21211 + ... + 21792.

It is an arithmetic number, because the mean of its divisors is an integer number (2107196).

Almost surely, 212513873 is an apocalyptic number.

It is an amenable number.

12513873 is a deficient number, since it is larger than the sum of its proper divisors (4343695).

12513873 is an equidigital number, since it uses as much as digits as its factorization.

12513873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43103.

The product of its digits is 5040, while the sum is 30.

The square root of 12513873 is about 3537.4953003502. The cubic root of 12513873 is about 232.1652669535.

The spelling of 12513873 in words is "twelve million, five hundred thirteen thousand, eight hundred seventy-three".

Divisors: 1 3 97 291 43003 129009 4171291 12513873