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12418984 = 231552373
BaseRepresentation
bin101111010111…
…111110101000
3212100221122101
4233113332220
511134401414
61122103144
7210362644
oct57277650
925327571
1012418984
117012626
1241aaab4
13275a916
141913c24
151154a74
hexbd7fa8

12418984 has 8 divisors (see below), whose sum is σ = 23285610. Its totient is φ = 6209488.

The previous prime is 12418981. The next prime is 12418999. The reversal of 12418984 is 48981421.

It can be written as a sum of positive squares in only one way, i.e., 8538084 + 3880900 = 2922^2 + 1970^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (12418981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776179 + ... + 776194.

Almost surely, 212418984 is an apocalyptic number.

It is an amenable number.

12418984 is a deficient number, since it is larger than the sum of its proper divisors (10866626).

12418984 is a wasteful number, since it uses less digits than its factorization.

12418984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552379 (or 1552375 counting only the distinct ones).

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

The square root of 12418984 is about 3524.0578882873. The cubic root of 12418984 is about 231.5769639311.

The spelling of 12418984 in words is "twelve million, four hundred eighteen thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 1552373 3104746 6209492 12418984