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12880741 is a prime number
BaseRepresentation
bin110001001000…
…101101100101
3220020102001111
4301020231211
511244140431
61140025021
7214325116
oct61105545
926212044
1012880741
1172a8545
124392171
13288cb53
1419d420d
1511e67b1
hexc48b65

12880741 has 2 divisors, whose sum is σ = 12880742. Its totient is φ = 12880740.

The previous prime is 12880739. The next prime is 12880783. The reversal of 12880741 is 14708821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11930116 + 950625 = 3454^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 12880741 - 21 = 12880739 is a prime.

Together with 12880739, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12880711) 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 as a sum of consecutive naturals, namely, 6440370 + 6440371.

It is an arithmetic number, because the mean of its divisors is an integer number (6440371).

Almost surely, 212880741 is an apocalyptic number.

It is an amenable number.

12880741 is a deficient number, since it is larger than the sum of its proper divisors (1).

12880741 is an equidigital number, since it uses as much as digits as its factorization.

12880741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 12880741 is about 3588.9749232894. The cubic root of 12880741 is about 234.4122387289.

The spelling of 12880741 in words is "twelve million, eight hundred eighty thousand, seven hundred forty-one".