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104020793591 = 1113819188807
BaseRepresentation
bin110000011100000011…
…1110101100011110111
3100221111101110211010212
41200320013311203313
53201013310343331
6115441514340035
710341506104541
oct1407007654367
9327441424125
10104020793591
114012a031910
12181b042a61b
139a69831850
14506b068691
152a8c21ad2b
hex18381f58f7

104020793591 has 16 divisors (see below), whose sum is σ = 122222542848. Its totient is φ = 87278536800.

The previous prime is 104020793567. The next prime is 104020793627. The reversal of 104020793591 is 195397020401.

It is a de Polignac number, because none of the positive numbers 2k-104020793591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104020793561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1126910 + ... + 1215716.

It is an arithmetic number, because the mean of its divisors is an integer number (7638908928).

Almost surely, 2104020793591 is an apocalyptic number.

104020793591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

104020793591 is a deficient number, since it is larger than the sum of its proper divisors (18201749257).

104020793591 is a wasteful number, since it uses less digits than its factorization.

104020793591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97022.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 104020793591 in words is "one hundred four billion, twenty million, seven hundred ninety-three thousand, five hundred ninety-one".

Divisors: 1 11 13 143 8191 88807 90101 106483 976877 1154491 1171313 12699401 727418137 8001599507 9456435781 104020793591