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86980015584 = 253271122337419
BaseRepresentation
bin101000100000001101…
…0011011010111100000
322022111210020121022200
41101000122123113200
52411113340444314
6103542535333200
76166305635160
oct1210032332740
9268453217280
1086980015584
1133984a51100
1214a35521200
138282261757
1442d1bb25a0
1523e118b709
hex144069b5e0

86980015584 has 864 divisors, whose sum is σ = 333787184640. Its totient is φ = 20975708160.

The previous prime is 86980015579. The next prime is 86980015589. The reversal of 86980015584 is 48551008968.

It is a happy number.

86980015584 is a `hidden beast` number, since 8 + 6 + 9 + 80 + 0 + 1 + 558 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (86980015579) and next prime (86980015589).

It is a super-2 number, since 2×869800155842 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86980015584.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86980015589) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 207589327 + ... + 207589745.

It is an arithmetic number, because the mean of its divisors is an integer number (386327760).

Almost surely, 286980015584 is an apocalyptic number.

86980015584 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86980015584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166893592320).

86980015584 is an abundant number, since it is smaller than the sum of its proper divisors (246807169056).

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

86980015584 is a wasteful number, since it uses less digits than its factorization.

86980015584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The spelling of 86980015584 in words is "eighty-six billion, nine hundred eighty million, fifteen thousand, five hundred eighty-four".