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102911357975 = 5231498726627
BaseRepresentation
bin101111111010111111…
…1101011010000010111
3100211122001212122120212
41133311333223100113
53141230301423400
6115135443320035
710302145052426
oct1376577532027
9324561778525
10102911357975
113a70a862478
1217b4098001b
139920a2917a
144da39912bd
152a24b1e335
hex17f5feb417

102911357975 has 24 divisors (see below), whose sum is σ = 131757900288. Its totient is φ = 79654341600.

The previous prime is 102911357963. The next prime is 102911358007. The reversal of 102911357975 is 579753119201.

It is a happy number.

It is not a de Polignac number, because 102911357975 - 230 = 101837616151 is a prime.

It is a super-2 number, since 2×1029113579752 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3851612 + ... + 3878238.

It is an arithmetic number, because the mean of its divisors is an integer number (5489912512).

Almost surely, 2102911357975 is an apocalyptic number.

102911357975 is a deficient number, since it is larger than the sum of its proper divisors (28846542313).

102911357975 is a wasteful number, since it uses less digits than its factorization.

102911357975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31655 (or 31650 counting only the distinct ones).

The product of its (nonzero) digits is 595350, while the sum is 50.

The spelling of 102911357975 in words is "one hundred two billion, nine hundred eleven million, three hundred fifty-seven thousand, nine hundred seventy-five".

Divisors: 1 5 25 31 155 775 4987 24935 26627 124675 133135 154597 665675 772985 825437 3864925 4127185 20635925 132788849 663944245 3319721225 4116454319 20582271595 102911357975