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10626125661 = 325322276993
BaseRepresentation
bin10011110010101110…
…11100111101011101
31000102112221010001200
421321113130331131
5133230242010121
64514230430113
7524216402124
oct117127347535
930375833050
1010626125661
114563197538
122086802339
131004632728
1472b38aabb
15422d3ba26
hex2795dcf5d

10626125661 has 12 divisors (see below), whose sum is σ = 15638449788. Its totient is φ = 6950421504.

The previous prime is 10626125651. The next prime is 10626125669. The reversal of 10626125661 is 16652162601.

10626125661 is a `hidden beast` number, since 1 + 0 + 626 + 1 + 25 + 6 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5002025625 + 5624100036 = 70725^2 + 74994^2 .

It is not a de Polignac number, because 10626125661 - 230 = 9552383837 is a prime.

It is a super-2 number, since 2×106261256612 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10626125669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11138020 + ... + 11138973.

It is an arithmetic number, because the mean of its divisors is an integer number (1303204149).

Almost surely, 210626125661 is an apocalyptic number.

It is an amenable number.

10626125661 is a deficient number, since it is larger than the sum of its proper divisors (5012324127).

10626125661 is a wasteful number, since it uses less digits than its factorization.

10626125661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22277052 (or 22277049 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 10626125661 in words is "ten billion, six hundred twenty-six million, one hundred twenty-five thousand, six hundred sixty-one".

Divisors: 1 3 9 53 159 477 22276993 66830979 200492937 1180680629 3542041887 10626125661