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12412102491 = 321379122499
BaseRepresentation
bin10111000111101000…
…11010011101011011
31012001000120010200200
423203310122131123
5200404444234431
65411350233243
7616404062505
oct134364323533
935030503620
1012412102491
11529a343348
1224a4955823
13122a652959
1485a652d75
154c9a24ee6
hex2e3d1a75b

12412102491 has 6 divisors (see below), whose sum is σ = 17928592500. Its totient is φ = 8274734988.

The previous prime is 12412102477. The next prime is 12412102499. The reversal of 12412102491 is 19420121421.

It is a happy number.

12412102491 is a `hidden beast` number, since 1 + 2 + 412 + 1 + 0 + 249 + 1 = 666.

It is not a de Polignac number, because 12412102491 - 219 = 12411578203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12412102499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 689561241 + ... + 689561258.

It is an arithmetic number, because the mean of its divisors is an integer number (2988098750).

Almost surely, 212412102491 is an apocalyptic number.

12412102491 is a deficient number, since it is larger than the sum of its proper divisors (5516490009).

12412102491 is a wasteful number, since it uses less digits than its factorization.

12412102491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379122505 (or 1379122502 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 12412102491 in words is "twelve billion, four hundred twelve million, one hundred two thousand, four hundred ninety-one".

Divisors: 1 3 9 1379122499 4137367497 12412102491