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11458188872 = 23131013108761
BaseRepresentation
bin10101010101111011…
…00001011001001000
31002120112121022012122
422222331201121020
5141431244020442
65132552430412
7553641666314
oct125275413110
932515538178
1011458188872
11494a937989
1222793a8408
131107b30720
147a9aa0b44
15470de8dd2
hex2aaf61648

11458188872 has 32 divisors (see below), whose sum is σ = 23159780280. Its totient is φ = 5283125760.

The previous prime is 11458188857. The next prime is 11458188883. The reversal of 11458188872 is 27888185411.

It can be written as a sum of positive squares in 4 ways, for example, as 6289441636 + 5168747236 = 79306^2 + 71894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50972 + ... + 159732.

Almost surely, 211458188872 is an apocalyptic number.

It is an amenable number.

11458188872 is an abundant number, since it is smaller than the sum of its proper divisors (11701591408).

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

11458188872 is a wasteful number, since it uses less digits than its factorization.

11458188872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109793 (or 109789 counting only the distinct ones).

The product of its digits is 1146880, while the sum is 53.

The spelling of 11458188872 in words is "eleven billion, four hundred fifty-eight million, one hundred eighty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 104 1013 2026 4052 8104 13169 26338 52676 105352 108761 217522 435044 870088 1413893 2827786 5655572 11311144 110174893 220349786 440699572 881399144 1432273609 2864547218 5729094436 11458188872