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680626833801 = 3526143124047
BaseRepresentation
bin10011110011110001000…
…01010100100110001001
32102001211001110120210220
421321320201110212021
542122410432140201
61240401535100253
7100113365426265
oct11717041244611
92361731416726
10680626833801
1124271a116142
12abab0671689
134c24b8c49a5
1424d2a38d0a5
1512a883aa036
hex9e78854989

680626833801 has 8 divisors (see below), whose sum is σ = 907674962304. Its totient is φ = 453664963920.

The previous prime is 680626833779. The next prime is 680626833871. The reversal of 680626833801 is 108338626086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 680626833801 - 213 = 680626825609 is a prime.

It is a super-2 number, since 2×6806268338012 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (680626833871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21546241 + ... + 21577806.

It is an arithmetic number, because the mean of its divisors is an integer number (113459370288).

Almost surely, 2680626833801 is an apocalyptic number.

It is an amenable number.

680626833801 is a deficient number, since it is larger than the sum of its proper divisors (227048128503).

680626833801 is a wasteful number, since it uses less digits than its factorization.

680626833801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43129311.

The product of its (nonzero) digits is 1990656, while the sum is 51.

The spelling of 680626833801 in words is "six hundred eighty billion, six hundred twenty-six million, eight hundred thirty-three thousand, eight hundred one".

Divisors: 1 3 5261 15783 43124047 129372141 226875611267 680626833801