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12613130421 = 359911296217
BaseRepresentation
bin10111011111100110…
…10001100010110101
31012120000211102011120
423233303101202311
5201312430133141
65443331054153
7624364560663
oct135763214265
935500742146
1012613130421
115392868631
122540141359
1312601a9aa8
14879221c33
154dc4d3c66
hex2efcd18b5

12613130421 has 16 divisors (see below), whose sum is σ = 16863216000. Its totient is φ = 8385931008.

The previous prime is 12613130401. The next prime is 12613130443. The reversal of 12613130421 is 12403131621.

It is a happy number.

It is not a de Polignac number, because 12613130421 - 26 = 12613130357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12613130391 and 12613130400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12613130401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2025705 + ... + 2031921.

It is an arithmetic number, because the mean of its divisors is an integer number (1053951000).

Almost surely, 212613130421 is an apocalyptic number.

It is an amenable number.

12613130421 is a deficient number, since it is larger than the sum of its proper divisors (4250085579).

12613130421 is a wasteful number, since it uses less digits than its factorization.

12613130421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7948.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 12613130421 in words is "twelve billion, six hundred thirteen million, one hundred thirty thousand, four hundred twenty-one".

Divisors: 1 3 599 1129 1797 3387 6217 18651 676271 2028813 3723983 7018993 11171949 21056979 4204376807 12613130421