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11868427458 = 232659357081
BaseRepresentation
bin10110000110110100…
…11101010011000010
31010122010112120202100
423003122131103002
5143301304134313
65241405331230
7600052653216
oct130332352302
933563476670
1011868427458
115040466238
122372866b16
131171b18354
1480836c946
15496e31173
hex2c369d4c2

11868427458 has 12 divisors (see below), whose sum is σ = 25714926198. Its totient is φ = 3956142480.

The previous prime is 11868427397. The next prime is 11868427489. The reversal of 11868427458 is 85472486811.

11868427458 is a `hidden beast` number, since 1 + 186 + 8 + 4 + 2 + 7 + 458 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11567647809 + 300779649 = 107553^2 + 17343^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 329678523 + ... + 329678558.

Almost surely, 211868427458 is an apocalyptic number.

11868427458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11868427458 is an abundant number, since it is smaller than the sum of its proper divisors (13846498740).

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

11868427458 is a wasteful number, since it uses less digits than its factorization.

11868427458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659357089 (or 659357086 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 54.

The spelling of 11868427458 in words is "eleven billion, eight hundred sixty-eight million, four hundred twenty-seven thousand, four hundred fifty-eight".

Divisors: 1 2 3 6 9 18 659357081 1318714162 1978071243 3956142486 5934213729 11868427458