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86986993570 = 2539232217359
BaseRepresentation
bin101000100000011010…
…1000010111110100010
322022112021101010022121
41101000311002332202
52411122132243240
6103543345054454
76166422150151
oct1210065027642
9268467333277
1086986993570
1133988987834
1214a3792742a
138283835939
1442d2aab598
1523e1ab904a
hex1440d42fa2

86986993570 has 16 divisors (see below), whose sum is σ = 156616571520. Its totient is φ = 34785912304.

The previous prime is 86986993553. The next prime is 86986993589. The reversal of 86986993570 is 7539968968.

It is a super-3 number, since 3×869869935703 (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86986993570.

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, 1069450 + ... + 1147909.

It is an arithmetic number, because the mean of its divisors is an integer number (9788535720).

Almost surely, 286986993570 is an apocalyptic number.

86986993570 is a deficient number, since it is larger than the sum of its proper divisors (69629577950).

86986993570 is a wasteful number, since it uses less digits than its factorization.

86986993570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221289.

The product of its (nonzero) digits is 176359680, while the sum is 70.

The spelling of 86986993570 in words is "eighty-six billion, nine hundred eighty-six million, nine hundred ninety-three thousand, five hundred seventy".

Divisors: 1 2 5 10 3923 7846 19615 39230 2217359 4434718 11086795 22173590 8698699357 17397398714 43493496785 86986993570