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12475812 = 2231039651
BaseRepresentation
bin101111100101…
…110110100100
3212110211121010
4233211312210
511143211222
61123222220
7211020426
oct57456644
925424533
1012475812
117051298
124217970
13277a74b
14192a816
15116680c
hexbe5da4

12475812 has 12 divisors (see below), whose sum is σ = 29110256. Its totient is φ = 4158600.

The previous prime is 12475811. The next prime is 12475817. The reversal of 12475812 is 21857421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12475812.

It is not an unprimeable number, because it can be changed into a prime (12475811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519814 + ... + 519837.

Almost surely, 212475812 is an apocalyptic number.

12475812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12475812 is an abundant number, since it is smaller than the sum of its proper divisors (16634444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12475812 is a wasteful number, since it uses less digits than its factorization.

12475812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039658 (or 1039656 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 12475812 is about 3532.1115497674. Note that the first 3 decimals coincide. The cubic root of 12475812 is about 231.9296506876.

The spelling of 12475812 in words is "twelve million, four hundred seventy-five thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 1039651 2079302 3118953 4158604 6237906 12475812