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12868611 = 37612791
BaseRepresentation
bin110001000101…
…110000000011
3220012210102020
4301011300003
511243243421
61135452523
7214244550
oct61056003
926183366
1012868611
11729a418
124387143
132887482
1419cda27
1511e2dc6
hexc45c03

12868611 has 8 divisors (see below), whose sum is σ = 19609344. Its totient is φ = 7353480.

The previous prime is 12868607. The next prime is 12868613. The reversal of 12868611 is 11686821.

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

It is not a de Polignac number, because 12868611 - 22 = 12868607 is a prime.

It is a super-2 number, since 2×128686112 = 331202298138642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12868613) 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, 306375 + ... + 306416.

It is an arithmetic number, because the mean of its divisors is an integer number (2451168).

Almost surely, 212868611 is an apocalyptic number.

12868611 is a deficient number, since it is larger than the sum of its proper divisors (6740733).

12868611 is an equidigital number, since it uses as much as digits as its factorization.

12868611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612801.

The product of its digits is 4608, while the sum is 33.

The square root of 12868611 is about 3587.2846276815. The cubic root of 12868611 is about 234.3386323661.

The spelling of 12868611 in words is "twelve million, eight hundred sixty-eight thousand, six hundred eleven".

Divisors: 1 3 7 21 612791 1838373 4289537 12868611