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91760234137 = 11133172024227
BaseRepresentation
bin101010101110101010…
…1100000111010011001
322202211221001212102021
41111131111200322121
53000411104443022
6110053140134441
76425622056335
oct1253525407231
9282757055367
1091760234137
1135a08295050
121594a397421
1388646cb240
1446269c27c5
1525c0b7c7c7
hex155d560e99

91760234137 has 16 divisors (see below), whose sum is σ = 108142356672. Its totient is φ = 76758649920.

The previous prime is 91760234123. The next prime is 91760234141. The reversal of 91760234137 is 73143206719.

It is a cyclic number.

It is not a de Polignac number, because 91760234137 - 27 = 91760234009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91760234093 and 91760234102.

It is not an unprimeable number, because it can be changed into a prime (91760234117) 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 15 ways as a sum of consecutive naturals, for example, 966783 + ... + 1057444.

It is an arithmetic number, because the mean of its divisors is an integer number (6758897292).

Almost surely, 291760234137 is an apocalyptic number.

It is an amenable number.

91760234137 is a deficient number, since it is larger than the sum of its proper divisors (16382122535).

91760234137 is a wasteful number, since it uses less digits than its factorization.

91760234137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024568.

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 91760234137 in words is "ninety-one billion, seven hundred sixty million, two hundred thirty-four thousand, one hundred thirty-seven".

Divisors: 1 11 13 143 317 3487 4121 45331 2024227 22266497 26314951 289464461 641679959 7058479549 8341839467 91760234137