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680582887806 = 231743115481163
BaseRepresentation
bin10011110011101011110…
…01101011100101111110
32102001200222202220020110
421321311321223211332
542122313204402211
61240353325130450
7100112323044663
oct11716571534576
92361628686213
10680582887806
112426a732a938
12aba999b9a26
134c242779043
1424d245cda6a
1512a845c8ea6
hex9e75e6b97e

680582887806 has 32 divisors (see below), whose sum is σ = 1444578375168. Its totient is φ = 213020789120.

The previous prime is 680582887759. The next prime is 680582887837. The reversal of 680582887806 is 608788285086.

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, 7696620 + ... + 7784543.

It is an arithmetic number, because the mean of its divisors is an integer number (45143074224).

Almost surely, 2680582887806 is an apocalyptic number.

680582887806 is an abundant number, since it is smaller than the sum of its proper divisors (763995487362).

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

680582887806 is a wasteful number, since it uses less digits than its factorization.

680582887806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15481616.

The product of its (nonzero) digits is 82575360, while the sum is 66.

The spelling of 680582887806 in words is "six hundred eighty billion, five hundred eighty-two million, eight hundred eighty-seven thousand, eight hundred six".

Divisors: 1 2 3 6 17 34 51 102 431 862 1293 2586 7327 14654 21981 43962 15481163 30962326 46443489 92886978 263179771 526359542 789539313 1579078626 6672381253 13344762506 20017143759 40034287518 113430481301 226860962602 340291443903 680582887806