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12399062049 = 3211125243051
BaseRepresentation
bin10111000110000101…
…01010110000100001
31012000010000121120100
423203002222300201
5200343124441144
65410202533013
7616155200643
oct134302526041
935003017510
1012399062049
115292a46920
1224a0507169
131227a3820a
14858a1a893
154c87eb269
hex2e30aac21

12399062049 has 12 divisors (see below), whose sum is σ = 19537916112. Its totient is φ = 7514583000.

The previous prime is 12399062023. The next prime is 12399062059. The reversal of 12399062049 is 94026099321.

It is a happy number.

12399062049 is a `hidden beast` number, since 12 + 3 + 9 + 9 + 0 + 620 + 4 + 9 = 666.

It is not a de Polignac number, because 12399062049 - 213 = 12399053857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12399061995 and 12399062013.

It is not an unprimeable number, because it can be changed into a prime (12399062059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62621427 + ... + 62621624.

It is an arithmetic number, because the mean of its divisors is an integer number (1628159676).

Almost surely, 212399062049 is an apocalyptic number.

It is an amenable number.

12399062049 is a deficient number, since it is larger than the sum of its proper divisors (7138854063).

12399062049 is a wasteful number, since it uses less digits than its factorization.

12399062049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125243068 (or 125243065 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 12399062049 in words is "twelve billion, three hundred ninety-nine million, sixty-two thousand, forty-nine".

Divisors: 1 3 9 11 33 99 125243051 375729153 1127187459 1377673561 4133020683 12399062049