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12976817 = 72318543
BaseRepresentation
bin110001100000…
…001010110001
3220102021211212
4301200022301
511310224232
61142045505
7215205200
oct61401261
926367755
1012976817
117363747
124419895
1328c47b9
141a1b237
151214eb2
hexc602b1

12976817 has 12 divisors (see below), whose sum is σ = 15584256. Its totient is φ = 10762920.

The previous prime is 12976793. The next prime is 12976819. The reversal of 12976817 is 71867921.

It is not a de Polignac number, because 12976817 - 212 = 12972721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12976819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2753 + ... + 5790.

It is an arithmetic number, because the mean of its divisors is an integer number (1298688).

Almost surely, 212976817 is an apocalyptic number.

It is an amenable number.

12976817 is a deficient number, since it is larger than the sum of its proper divisors (2607439).

12976817 is an equidigital number, since it uses as much as digits as its factorization.

12976817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8588 (or 8581 counting only the distinct ones).

The product of its digits is 42336, while the sum is 41.

The square root of 12976817 is about 3602.3349372317. The cubic root of 12976817 is about 234.9936138298.

The spelling of 12976817 in words is "twelve million, nine hundred seventy-six thousand, eight hundred seventeen".

Divisors: 1 7 31 49 217 1519 8543 59801 264833 418607 1853831 12976817