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12976045 = 55694561
BaseRepresentation
bin110001011111…
…111110101101
3220102020210021
4301133332231
511310213140
61142042141
7215203015
oct61377655
926366707
1012976045
117363105
124419351
1328c4344
141a1ac45
151214b4a
hexc5ffad

12976045 has 8 divisors (see below), whose sum is σ = 15602040. Its totient is φ = 10360320.

The previous prime is 12976039. The next prime is 12976063. The reversal of 12976045 is 54067921.

It can be written as a sum of positive squares in 4 ways, for example, as 37636 + 12938409 = 194^2 + 3597^2 .

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

It is not a de Polignac number, because 12976045 - 23 = 12976037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12976045.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 565 + ... + 5125.

It is an arithmetic number, because the mean of its divisors is an integer number (1950255).

Almost surely, 212976045 is an apocalyptic number.

It is an amenable number.

12976045 is a deficient number, since it is larger than the sum of its proper divisors (2625995).

12976045 is an equidigital number, since it uses as much as digits as its factorization.

12976045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 12976045 is about 3602.2277829143. The cubic root of 12976045 is about 234.9889537587.

The spelling of 12976045 in words is "twelve million, nine hundred seventy-six thousand, forty-five".

Divisors: 1 5 569 2845 4561 22805 2595209 12976045