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12927245 = 53769877
BaseRepresentation
bin110001010100…
…000100001101
3220022202211212
4301110010031
511302132440
61141024205
7214610522
oct61240415
926282755
1012927245
11732a481
1243b5065
1328a8076
141a07149
151205465
hexc5410d

12927245 has 8 divisors (see below), whose sum is σ = 15932184. Its totient is φ = 10062144.

The previous prime is 12927241. The next prime is 12927269. The reversal of 12927245 is 54272921.

It can be written as a sum of positive squares in 4 ways, for example, as 635209 + 12292036 = 797^2 + 3506^2 .

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 12927245 - 22 = 12927241 is a prime.

It is a super-2 number, since 2×129272452 = 334227326580050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12927241) 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, 34754 + ... + 35123.

It is an arithmetic number, because the mean of its divisors is an integer number (1991523).

Almost surely, 212927245 is an apocalyptic number.

It is an amenable number.

12927245 is a deficient number, since it is larger than the sum of its proper divisors (3004939).

12927245 is an equidigital number, since it uses as much as digits as its factorization.

12927245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69919.

The product of its digits is 10080, while the sum is 32.

The square root of 12927245 is about 3595.4478163367. The cubic root of 12927245 is about 234.6940034208.

The spelling of 12927245 in words is "twelve million, nine hundred twenty-seven thousand, two hundred forty-five".

Divisors: 1 5 37 185 69877 349385 2585449 12927245