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685786046168 = 232319319311389
BaseRepresentation
bin10011111101011000000…
…10001001111011011000
32102120010121102201200102
421332230002021323120
542213442211434133
61243013514554532
7100355263132616
oct11765402117330
92376117381612
10685786046168
11244927387813
12b0ab0438a48
134c891729682
14252996566b6
1512c8b2b07e8
hex9fac089ed8

685786046168 has 32 divisors (see below), whose sum is σ = 1348707477600. Its totient is φ = 326285211648.

The previous prime is 685786046149. The next prime is 685786046207. The reversal of 685786046168 is 861640687586.

685786046168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×6857860461682 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 9620183 + ... + 9691206.

It is an arithmetic number, because the mean of its divisors is an integer number (42147108675).

Almost surely, 2685786046168 is an apocalyptic number.

It is an amenable number.

685786046168 is a deficient number, since it is larger than the sum of its proper divisors (662921431432).

685786046168 is a wasteful number, since it uses less digits than its factorization.

685786046168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19311611 (or 19311607 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 65.

The spelling of 685786046168 in words is "six hundred eighty-five billion, seven hundred eighty-six million, forty-six thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 23 46 92 184 193 386 772 1544 4439 8878 17756 35512 19311389 38622778 77245556 154491112 444161947 888323894 1776647788 3553295576 3727098077 7454196154 14908392308 29816784616 85723255771 171446511542 342893023084 685786046168