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169985160868 = 2243988285819
BaseRepresentation
bin1001111001001111100…
…1111011011010100100
3121020202120001212122211
42132103321323122210
510241112200121433
6210031243533204
715165251012245
oct2362371733244
9536676055584
10169985160868
11660aa212326
1228b3b82a204
131304cb5ca33
148327ad2ccc
15464d3b88cd
hex2793e7b6a4

169985160868 has 12 divisors (see below), whose sum is σ = 304392032560. Its totient is φ = 83016008712.

The previous prime is 169985160833. The next prime is 169985160881. The reversal of 169985160868 is 868061589961.

It is a hoax number, since the sum of its digits (67) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494142738 + ... + 494143081.

Almost surely, 2169985160868 is an apocalyptic number.

It is an amenable number.

169985160868 is a deficient number, since it is larger than the sum of its proper divisors (134406871692).

169985160868 is a wasteful number, since it uses less digits than its factorization.

169985160868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988285866 (or 988285864 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 67.

The spelling of 169985160868 in words is "one hundred sixty-nine billion, nine hundred eighty-five million, one hundred sixty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 43 86 172 988285819 1976571638 3953143276 42496290217 84992580434 169985160868