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680387708011 = 1119314715114797
BaseRepresentation
bin10011110011010100100…
…01001000010001101011
32102001012101111201220011
421321222101020101223
542121413223124021
61240322113512351
7100104433044454
oct11715221102153
92361171451804
10680387708011
1124260713a420
12aba445726b7
134c2111bba3b
1424d0670412b
1512a723c2de1
hex9e6a44846b

680387708011 has 64 divisors (see below), whose sum is σ = 829180477440. Its totient is φ = 551298960000.

The previous prime is 680387707981. The next prime is 680387708041. The reversal of 680387708011 is 110807783086.

It is an interprime number because it is at equal distance from previous prime (680387707981) and next prime (680387708041).

It is a cyclic number.

It is not a de Polignac number, because 680387708011 - 213 = 680387699819 is a prime.

It is a super-2 number, since 2×6803877080112 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (680387708041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45974065 + ... + 45988861.

It is an arithmetic number, because the mean of its divisors is an integer number (12955944960).

Almost surely, 2680387708011 is an apocalyptic number.

680387708011 is a deficient number, since it is larger than the sum of its proper divisors (148792769429).

680387708011 is a wasteful number, since it uses less digits than its factorization.

680387708011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15056.

The product of its (nonzero) digits is 451584, while the sum is 49.

The spelling of 680387708011 in words is "six hundred eighty billion, three hundred eighty-seven million, seven hundred eight thousand, eleven".

Divisors: 1 11 19 31 47 151 209 341 517 589 893 1457 1661 2869 4681 6479 7097 9823 14797 16027 27683 31559 51491 78067 88939 134843 162767 220007 281143 304513 458707 695459 978329 1483273 2234347 2420077 3092573 4180133 5045777 7650049 8715433 13213721 21559229 24577817 42452593 45981463 69264757 95869763 105014309 145350931 237151519 409625351 466978523 761912327 1155157399 1316030383 1995271871 3255443579 4505878861 14476334213 21947990581 35809879369 61853428001 680387708011