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12080012217 = 371344249129
BaseRepresentation
bin10110100000000011…
…00101101110111001
31011011212200012110220
423100001211232321
5144214440342332
65314404330253
7605232260340
oct132001455671
934155605426
1012080012217
115139940a79
1224116a3989
1311a68ca630
148284c8b57
154aa7c7d2c
hex2d0065bb9

12080012217 has 16 divisors (see below), whose sum is σ = 19823610240. Its totient is φ = 6371874432.

The previous prime is 12080012149. The next prime is 12080012363. The reversal of 12080012217 is 71221008021.

It is not a de Polignac number, because 12080012217 - 214 = 12079995833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12080012117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22124292 + ... + 22124837.

It is an arithmetic number, because the mean of its divisors is an integer number (1238975640).

Almost surely, 212080012217 is an apocalyptic number.

It is an amenable number.

12080012217 is a deficient number, since it is larger than the sum of its proper divisors (7743598023).

12080012217 is a wasteful number, since it uses less digits than its factorization.

12080012217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44249152.

The product of its (nonzero) digits is 448, while the sum is 24.

The spelling of 12080012217 in words is "twelve billion, eighty million, twelve thousand, two hundred seventeen".

Divisors: 1 3 7 13 21 39 91 273 44249129 132747387 309743903 575238677 929231709 1725716031 4026670739 12080012217