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12941636 = 223235409
BaseRepresentation
bin110001010111…
…100101000100
3220100111120212
4301113211010
511303113021
61141214552
7215000501
oct61274504
926314525
1012941636
11733a274
124401458
1328b1796
141a0c4a8
15120985b
hexc57944

12941636 has 6 divisors (see below), whose sum is σ = 22647870. Its totient is φ = 6470816.

The previous prime is 12941633. The next prime is 12941639. The reversal of 12941636 is 63614921.

It is an interprime number because it is at equal distance from previous prime (12941633) and next prime (12941639).

It can be written as a sum of positive squares in only one way, i.e., 6791236 + 6150400 = 2606^2 + 2480^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12941633) 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, 1617701 + ... + 1617708.

It is an arithmetic number, because the mean of its divisors is an integer number (3774645).

Almost surely, 212941636 is an apocalyptic number.

It is an amenable number.

12941636 is a deficient number, since it is larger than the sum of its proper divisors (9706234).

12941636 is a wasteful number, since it uses less digits than its factorization.

12941636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235413 (or 3235411 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 12941636 is about 3597.4485402852. The cubic root of 12941636 is about 234.7810606109.

The spelling of 12941636 in words is "twelve million, nine hundred forty-one thousand, six hundred thirty-six".

Divisors: 1 2 4 3235409 6470818 12941636