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23100891458 = 21074732
BaseRepresentation
bin10101100000111010…
…111010000101000010
32012121221101212122112
4111200322322011002
5334302312011313
614340140135322
71445314223531
oct254072720502
965557355575
1023100891458
11988493a737
124588537542
132241c55658
141192072318
159030dd8a8
hex560eba142

23100891458 has 6 divisors (see below), whose sum is σ = 34651659609. Its totient is φ = 11550338256.

The previous prime is 23100891377. The next prime is 23100891461. The reversal of 23100891458 is 85419800132.

It can be written as a sum of positive squares in 2 ways, for example, as 19613162209 + 3487729249 = 140047^2 + 59057^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=107473.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 161210 + ... + 268682.

Almost surely, 223100891458 is an apocalyptic number.

23100891458 is a deficient number, since it is larger than the sum of its proper divisors (11550768151).

23100891458 is an frugal number, since it uses more digits than its factorization.

23100891458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214948 (or 107475 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 23100891458 in words is "twenty-three billion, one hundred million, eight hundred ninety-one thousand, four hundred fifty-eight".

Divisors: 1 2 107473 214946 11550445729 23100891458