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12981484 = 2219170809
BaseRepresentation
bin110001100001…
…010011101100
3220102112020201
4301201103230
511310401414
61142123244
7215224615
oct61412354
926375221
1012981484
1173671aa
124420524
1328c6969
141a1cc0c
151216574
hexc614ec

12981484 has 12 divisors (see below), whose sum is σ = 23913400. Its totient is φ = 6149088.

The previous prime is 12981481. The next prime is 12981491. The reversal of 12981484 is 48418921.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12981481) 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 in 3 ways as a sum of consecutive naturals, for example, 85329 + ... + 85480.

Almost surely, 212981484 is an apocalyptic number.

It is an amenable number.

12981484 is a deficient number, since it is larger than the sum of its proper divisors (10931916).

12981484 is a wasteful number, since it uses less digits than its factorization.

12981484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170832 (or 170830 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 12981484 is about 3602.9826533027. The cubic root of 12981484 is about 235.0217815935.

The spelling of 12981484 in words is "twelve million, nine hundred eighty-one thousand, four hundred eighty-four".

Divisors: 1 2 4 19 38 76 170809 341618 683236 3245371 6490742 12981484