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91051058948941 = 7213713795311877
BaseRepresentation
bin10100101100111101111010…
…000001100110101101001101
3102221101101200211221001102101
4110230331322001212231031
543413240032042331231
6521352140134355101
725115136056236300
oct2454757201465515
9387341624831371
1091051058948941
11270145a0098113
12a26637b4bba91
133ba61025328a0
14186ac75350b37
15a7d6a8910661
hex52cf7a066b4d

91051058948941 has 48 divisors (see below), whose sum is σ = 115975719699840. Its totient is φ = 70838328435840.

The previous prime is 91051058948917. The next prime is 91051058948977. The reversal of 91051058948941 is 14984985015019.

It is not a de Polignac number, because 91051058948941 - 29 = 91051058948429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91051058948741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14485095 + ... + 19796971.

It is an arithmetic number, because the mean of its divisors is an integer number (2416160827080).

Almost surely, 291051058948941 is an apocalyptic number.

91051058948941 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

91051058948941 is a deficient number, since it is larger than the sum of its proper divisors (24924660750899).

91051058948941 is a wasteful number, since it uses less digits than its factorization.

91051058948941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312354 (or 5312347 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 64.

The spelling of 91051058948941 in words is "ninety-one trillion, fifty-one billion, fifty-eight million, nine hundred forty-eight thousand, nine hundred forty-one".

Divisors: 1 7 13 49 71 91 379 497 637 923 2653 3479 4927 6461 18571 26909 34489 45227 188363 241423 349817 1318541 2448719 5311877 17141033 37183139 69054401 260281973 377143267 483380807 2013201383 2640002869 3383665649 4902862471 14092409681 18480020083 26171617979 34320037297 98646867767 142937298193 183201325853 240240261079 1000561087351 1282409280971 1858184876509 7003927611457 13007294135563 91051058948941