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686910414 = 23298814481
BaseRepresentation
bin101000111100010…
…110101111001110
31202212112122221110
4220330112233032
52401322113124
6152054512450
723010433161
oct5074265716
91685478843
10686910414
11322819a63
12172065726
13ac408488
146732bad8
1540489029
hex28f16bce

686910414 has 32 divisors (see below), whose sum is σ = 1423124640. Its totient is φ = 220774400.

The previous prime is 686910409. The next prime is 686910437. The reversal of 686910414 is 414019686.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 151054 + ... + 155534.

It is an arithmetic number, because the mean of its divisors is an integer number (44472645).

Almost surely, 2686910414 is an apocalyptic number.

686910414 is an abundant number, since it is smaller than the sum of its proper divisors (736214226).

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

686910414 is a wasteful number, since it uses less digits than its factorization.

686910414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5396.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 686910414 is about 26208.9758289026. The cubic root of 686910414 is about 882.3347154390.

The spelling of 686910414 in words is "six hundred eighty-six million, nine hundred ten thousand, four hundred fourteen".

Divisors: 1 2 3 6 29 58 87 174 881 1762 2643 4481 5286 8962 13443 25549 26886 51098 76647 129949 153294 259898 389847 779694 3947761 7895522 11843283 23686566 114485069 228970138 343455207 686910414