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680315191911 = 32109693491531
BaseRepresentation
bin10011110011001011111…
…00100000001001100111
32102001000100001112111200
421321211330200021213
542121241142120121
61240311003333543
7100102562501325
oct11714574401147
92361010045450
10680315191911
1124257a20aa63
12aba242212b3
134c1cc17bbc4
1424cdac28d15
1512a6ad4ba26
hex9e65f20267

680315191911 has 12 divisors (see below), whose sum is σ = 991692890760. Its totient is φ = 449382511440.

The previous prime is 680315191859. The next prime is 680315191937. The reversal of 680315191911 is 119191513086.

It is a happy number.

680315191911 is a `hidden beast` number, since 6 + 80 + 31 + 519 + 19 + 11 = 666.

680315191911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 680315191911 - 27 = 680315191783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680315191981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346744785 + ... + 346746746.

It is an arithmetic number, because the mean of its divisors is an integer number (82641074230).

Almost surely, 2680315191911 is an apocalyptic number.

680315191911 is a deficient number, since it is larger than the sum of its proper divisors (311377698849).

680315191911 is a wasteful number, since it uses less digits than its factorization.

680315191911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693491646 (or 693491643 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 45.

The spelling of 680315191911 in words is "six hundred eighty billion, three hundred fifteen million, one hundred ninety-one thousand, nine hundred eleven".

Divisors: 1 3 9 109 327 981 693491531 2080474593 6241423779 75590576879 226771730637 680315191911