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12906265715 = 57857343013
BaseRepresentation
bin11000000010100010…
…11111110001110011
31020022110102020012022
430001101133301303
5202413001000330
65532402022055
7634554306560
oct140121376163
936273366168
1012906265715
115523283502
12260234792b
1312a8b43125
148a6129867
155080d8ae5
hex30145fc73

12906265715 has 16 divisors (see below), whose sum is σ = 17702497728. Its totient is φ = 8848772736.

The previous prime is 12906265711. The next prime is 12906265721. The reversal of 12906265715 is 51756260921.

It is a happy number.

12906265715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12906265715 - 22 = 12906265711 is a prime.

It is a super-2 number, since 2×129062657152 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12906265711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278549 + ... + 321561.

It is an arithmetic number, because the mean of its divisors is an integer number (1106406108).

Almost surely, 212906265715 is an apocalyptic number.

12906265715 is a deficient number, since it is larger than the sum of its proper divisors (4796232013).

12906265715 is an equidigital number, since it uses as much as digits as its factorization.

12906265715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51598.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 12906265715 in words is "twelve billion, nine hundred six million, two hundred sixty-five thousand, seven hundred fifteen".

Divisors: 1 5 7 35 8573 42865 43013 60011 215065 300055 301091 1505455 368750449 1843752245 2581253143 12906265715