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12631635688790 = 251449418715019
BaseRepresentation
bin1011011111010000100000…
…1010000111110101010110
31122201120110102001122212002
42313310020022013311112
53123424042214020130
642510520542555302
72442414464540246
oct267641012076526
948646412048762
1012631635688790
114030057049648
121500119298b32
13708209562371
14319535611b26
1516d8a02b5b45
hexb7d08287d56

12631635688790 has 16 divisors (see below), whose sum is σ = 22737103719120. Its totient is φ = 5052618835680.

The previous prime is 12631635688681. The next prime is 12631635688807. The reversal of 12631635688790 is 9788653613621.

12631635688790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2908100 + ... + 5806919.

It is an arithmetic number, because the mean of its divisors is an integer number (1421068982445).

Almost surely, 212631635688790 is an apocalyptic number.

12631635688790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12631635688790 is a deficient number, since it is larger than the sum of its proper divisors (10105468030330).

12631635688790 is a wasteful number, since it uses less digits than its factorization.

12631635688790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8859967.

The product of its (nonzero) digits is 78382080, while the sum is 65.

The spelling of 12631635688790 in words is "twelve trillion, six hundred thirty-one billion, six hundred thirty-five million, six hundred eighty-eight thousand, seven hundred ninety".

Divisors: 1 2 5 10 144941 289882 724705 1449410 8715019 17430038 43575095 87150190 1263163568879 2526327137758 6315817844395 12631635688790