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679856470 = 25322121107
BaseRepresentation
bin101000100001011…
…100100101010110
31202101021021202021
4220201130211112
52343020401340
6151243403354
722563453556
oct5041344526
91671237667
10679856470
11319841257
1216b82355a
13aab08847
1466413166
153ea43e4a
hex2885c956

679856470 has 16 divisors (see below), whose sum is σ = 1224179568. Its totient is φ = 271845280.

The previous prime is 679856459. The next prime is 679856491. The reversal of 679856470 is 74658976.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21657 + ... + 42763.

It is an arithmetic number, because the mean of its divisors is an integer number (76511223).

Almost surely, 2679856470 is an apocalyptic number.

679856470 is a deficient number, since it is larger than the sum of its proper divisors (544323098).

679856470 is a wasteful number, since it uses less digits than its factorization.

679856470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24335.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The square root of 679856470 is about 26074.0574134522. The cubic root of 679856470 is about 879.3040597876.

The spelling of 679856470 in words is "six hundred seventy-nine million, eight hundred fifty-six thousand, four hundred seventy".

Divisors: 1 2 5 10 3221 6442 16105 21107 32210 42214 105535 211070 67985647 135971294 339928235 679856470