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12611250838 = 213339472721
BaseRepresentation
bin10111011111011000…
…00110101010010110
31012112220021220212101
423233230012222112
5201311440011323
65443222512314
7624342602104
oct135754065226
935486256771
1012611250838
1153917a445a
12253b59569a
13125c99c404
14878c92c74
154dc261dad
hex2efb06a96

12611250838 has 8 divisors (see below), whose sum is σ = 18918334440. Its totient is φ = 6305139360.

The previous prime is 12611250809. The next prime is 12611250863. The reversal of 12611250838 is 83805211621.

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

It is a junction number, because it is equal to n+sod(n) for n = 12611250797 and 12611250806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209683 + ... + 263038.

It is an arithmetic number, because the mean of its divisors is an integer number (2364791805).

Almost surely, 212611250838 is an apocalyptic number.

12611250838 is a deficient number, since it is larger than the sum of its proper divisors (6307083602).

12611250838 is a wasteful number, since it uses less digits than its factorization.

12611250838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486062.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 12611250838 in words is "twelve billion, six hundred eleven million, two hundred fifty thousand, eight hundred thirty-eight".

Divisors: 1 2 13339 26678 472721 945442 6305625419 12611250838