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12664201 = 111767723
BaseRepresentation
bin110000010011…
…110110001001
3212211102000111
4300103312021
511220223301
61131234321
7212433604
oct60236611
925742014
1012664201
11716a890
1242a89a1
132815414
14197933b
1511a2551
hexc13d89

12664201 has 8 divisors (see below), whose sum is σ = 14628384. Its totient is φ = 10835520.

The previous prime is 12664193. The next prime is 12664207. The reversal of 12664201 is 10246621.

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

It is a cyclic number.

It is not a de Polignac number, because 12664201 - 23 = 12664193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12664207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33675 + ... + 34048.

It is an arithmetic number, because the mean of its divisors is an integer number (1828548).

Almost surely, 212664201 is an apocalyptic number.

12664201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12664201 is a deficient number, since it is larger than the sum of its proper divisors (1964183).

12664201 is a wasteful number, since it uses less digits than its factorization.

12664201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67751.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12664201 is about 3558.6796708892. The cubic root of 12664201 is about 233.0912289270.

The spelling of 12664201 in words is "twelve million, six hundred sixty-four thousand, two hundred one".

Divisors: 1 11 17 187 67723 744953 1151291 12664201