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686268974116 = 221156873274243
BaseRepresentation
bin10011111110010001101…
…00011000010000100100
32102121101021011000021201
421333020310120100210
542220434324132431
61243133445452244
7100403246014045
oct11771064302044
92377337130251
10686268974116
11245054a43720
12b1006111084
134c93a7b4c5b
14253038468cc
1512cb88a5461
hex9fc8d18424

686268974116 has 24 divisors (see below), whose sum is σ = 1310177673504. Its totient is φ = 311933820480.

The previous prime is 686268974047. The next prime is 686268974117. The reversal of 686268974116 is 611479862686.

It is not an unprimeable number, because it can be changed into a prime (686268974117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2365291 + ... + 2639533.

It is an arithmetic number, because the mean of its divisors is an integer number (54590736396).

Almost surely, 2686268974116 is an apocalyptic number.

It is an amenable number.

686268974116 is a deficient number, since it is larger than the sum of its proper divisors (623908699388).

686268974116 is a wasteful number, since it uses less digits than its factorization.

686268974116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331131 (or 331129 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 64.

The spelling of 686268974116 in words is "six hundred eighty-six billion, two hundred sixty-eight million, nine hundred seventy-four thousand, one hundred sixteen".

Divisors: 1 2 4 11 22 44 56873 113746 227492 274243 548486 625603 1096972 1251206 2502412 3016673 6033346 12066692 15597022139 31194044278 62388088556 171567243529 343134487058 686268974116