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10612568905 = 52122513781
BaseRepresentation
bin10011110001000111…
…01111001101001001
31000101121102100200121
421320203233031021
5133213304201110
64513024103241
7523663230061
oct117043571511
930347370617
1010612568905
114556578104
122082164b21
131001896c93
1472965c3a1
15421a5ecda
hex2788ef349

10612568905 has 4 divisors (see below), whose sum is σ = 12735082692. Its totient is φ = 8490055120.

The previous prime is 10612568887. The next prime is 10612568957. The reversal of 10612568905 is 50986521601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4398872976 + 6213695929 = 66324^2 + 78827^2 .

It is not a de Polignac number, because 10612568905 - 229 = 10075697993 is a prime.

It is a super-3 number, since 3×106125689053 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061256886 + ... + 1061256895.

It is an arithmetic number, because the mean of its divisors is an integer number (3183770673).

Almost surely, 210612568905 is an apocalyptic number.

It is an amenable number.

10612568905 is a deficient number, since it is larger than the sum of its proper divisors (2122513787).

10612568905 is an equidigital number, since it uses as much as digits as its factorization.

10612568905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122513786.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 10612568905 in words is "ten billion, six hundred twelve million, five hundred sixty-eight thousand, nine hundred five".

Divisors: 1 5 2122513781 10612568905