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90126702928613 = 138089198570479
BaseRepresentation
bin10100011111100001000010…
…000111001110001011100101
3102211010000202212222221102002
4110133201002013032023211
543303113441422203423
6515403345153055045
724661303500555161
oct2437410207161345
9384100685887362
1090126702928613
112679857a2287aa
12a1371aa557485
133b39bb0a96c40
141838227335ca1
15a6460801a228
hex51f8421ce2e5

90126702928613 has 8 divisors (see below), whose sum is σ = 97059657542400. Its totient is φ = 83193767073648.

The previous prime is 90126702928609. The next prime is 90126702928637. The reversal of 90126702928613 is 31682920762109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90126702928613 - 22 = 90126702928609 is a prime.

It is a super-2 number, since 2×901267029286132 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90126702928663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6230708 + ... + 14801186.

It is an arithmetic number, because the mean of its divisors is an integer number (12132457192800).

Almost surely, 290126702928613 is an apocalyptic number.

It is an amenable number.

90126702928613 is a deficient number, since it is larger than the sum of its proper divisors (6932954613787).

90126702928613 is a wasteful number, since it uses less digits than its factorization.

90126702928613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9379411.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 90126702928613 in words is "ninety trillion, one hundred twenty-six billion, seven hundred two million, nine hundred twenty-eight thousand, six hundred thirteen".

Divisors: 1 13 808919 8570479 10515947 111416227 6932823302201 90126702928613