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104631564487 = 179091677021
BaseRepresentation
bin110000101110010000…
…1101111100011000111
3101000001221202012022011
41201130201233203013
53203241140030422
6120022253315051
710362603423652
oct1413441574307
9330057665264
10104631564487
114041287704a
1218340a95a87
139b3622bb48
1450c8216899
152ac5b65077
hex185c86f8c7

104631564487 has 8 divisors (see below), whose sum is σ = 110798712432. Its totient is φ = 98465788800.

The previous prime is 104631564481. The next prime is 104631564509. The reversal of 104631564487 is 784465136401.

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

It is a cyclic number.

It is not a de Polignac number, because 104631564487 - 211 = 104631562439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104631564487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104631564481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183964 + ... + 493057.

It is an arithmetic number, because the mean of its divisors is an integer number (13849839054).

Almost surely, 2104631564487 is an apocalyptic number.

104631564487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

104631564487 is a deficient number, since it is larger than the sum of its proper divisors (6167147945).

104631564487 is an equidigital number, since it uses as much as digits as its factorization.

104631564487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686129.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 104631564487 in words is "one hundred four billion, six hundred thirty-one million, five hundred sixty-four thousand, four hundred eighty-seven".

Divisors: 1 17 9091 154547 677021 11509357 6154797911 104631564487