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12744589 = 111389123
BaseRepresentation
bin110000100111…
…011110001101
3212222111021211
4300213132031
511230311324
61133054421
7213220144
oct60473615
925874254
1012744589
117215220
124327411
132842ba0
14199a75b
1511bb294
hexc2778d

12744589 has 8 divisors (see below), whose sum is σ = 14972832. Its totient is φ = 10694640.

The previous prime is 12744583. The next prime is 12744617. The reversal of 12744589 is 98544721.

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

It is not a de Polignac number, because 12744589 - 23 = 12744581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12744581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44419 + ... + 44704.

It is an arithmetic number, because the mean of its divisors is an integer number (1871604).

Almost surely, 212744589 is an apocalyptic number.

It is an amenable number.

12744589 is a deficient number, since it is larger than the sum of its proper divisors (2228243).

12744589 is a wasteful number, since it uses less digits than its factorization.

12744589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89147.

The product of its digits is 80640, while the sum is 40.

The square root of 12744589 is about 3569.9564423113. The cubic root of 12744589 is about 233.5833834137.

The spelling of 12744589 in words is "twelve million, seven hundred forty-four thousand, five hundred eighty-nine".

Divisors: 1 11 13 143 89123 980353 1158599 12744589