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13126641252 = 22313954714387
BaseRepresentation
bin11000011100110100…
…01010011001100100
31020212211002110121020
430032122022121210
5203340410010002
610010313251140
7643201416054
oct141632123144
936784073536
1013126641252
11562671294a
122664103ab0
1313126b275a
148c74d3564
1551c61a2bc
hex30e68a664

13126641252 has 48 divisors (see below), whose sum is σ = 30907726080. Its totient is φ = 4335825312.

The previous prime is 13126641217. The next prime is 13126641277. The reversal of 13126641252 is 25214662131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905203 + ... + 919589.

It is an arithmetic number, because the mean of its divisors is an integer number (643910960).

Almost surely, 213126641252 is an apocalyptic number.

13126641252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13126641252 is an abundant number, since it is smaller than the sum of its proper divisors (17781084828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13126641252 is a wasteful number, since it uses less digits than its factorization.

13126641252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15080 (or 15078 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The spelling of 13126641252 in words is "thirteen billion, one hundred twenty-six million, six hundred forty-one thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 139 278 417 547 556 834 1094 1641 1668 2188 3282 6564 14387 28774 43161 57548 76033 86322 152066 172644 228099 304132 456198 912396 1999793 3999586 5999379 7869689 7999172 11998758 15739378 23609067 23997516 31478756 47218134 94436268 1093886771 2187773542 3281660313 4375547084 6563320626 13126641252