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680637095 = 51919137511
BaseRepresentation
bin101000100100011…
…011001010100111
31202102201221120022
4220210123022213
52343220341340
6151312225355
722603214465
oct5044331247
91672657508
10680637095
1131a2247a6
1216bb3b25b
13ab01cc58
1466577835
153eb4a3b5
hex2891b2a7

680637095 has 16 divisors (see below), whose sum is σ = 864276480. Its totient is φ = 513136800.

The previous prime is 680637079. The next prime is 680637119. The reversal of 680637095 is 590736086.

It is not a de Polignac number, because 680637095 - 24 = 680637079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611 + ... + 36900.

It is an arithmetic number, because the mean of its divisors is an integer number (54017280).

Almost surely, 2680637095 is an apocalyptic number.

680637095 is a deficient number, since it is larger than the sum of its proper divisors (183639385).

680637095 is a wasteful number, since it uses less digits than its factorization.

680637095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37726.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 680637095 is about 26089.0224998945. The cubic root of 680637095 is about 879.6404759843.

The spelling of 680637095 in words is "six hundred eighty million, six hundred thirty-seven thousand, ninety-five".

Divisors: 1 5 19 95 191 955 3629 18145 37511 187555 712709 3563545 7164601 35823005 136127419 680637095