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680911474 = 21929617887
BaseRepresentation
bin101000100101011…
…110001001110010
31202110020212221111
4220211132021302
52343303131344
6151322143534
722605436435
oct5045361162
91673225844
10680911474
1131a3a1961
12170051baa
13ab0b7ac9
146660981c
153eba1834
hex2895e272

680911474 has 16 divisors (see below), whose sum is σ = 1112198400. Its totient is φ = 311414544.

The previous prime is 680911459. The next prime is 680911529. The reversal of 680911474 is 474119086.

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, 307842 + ... + 310045.

It is an arithmetic number, because the mean of its divisors is an integer number (69512400).

Almost surely, 2680911474 is an apocalyptic number.

680911474 is a deficient number, since it is larger than the sum of its proper divisors (431286926).

680911474 is a wasteful number, since it uses less digits than its factorization.

680911474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617937.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 680911474 is about 26094.2804844280. The cubic root of 680911474 is about 879.7586605751.

The spelling of 680911474 in words is "six hundred eighty million, nine hundred eleven thousand, four hundred seventy-four".

Divisors: 1 2 19 29 38 58 551 1102 617887 1235774 11739853 17918723 23479706 35837446 340455737 680911474