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8112904 = 231014113
BaseRepresentation
bin11110111100101100001000
3120021011210221
4132330230020
54034103104
6445515424
7125646532
oct36745410
916234727
108112904
114641388
122872b74
1318b0947
141112852
15aa3c54
hex7bcb08

8112904 has 8 divisors (see below), whose sum is σ = 15211710. Its totient is φ = 4056448.

The previous prime is 8112857. The next prime is 8112911. The reversal of 8112904 is 4092118.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4120900 + 3992004 = 2030^2 + 1998^2 .

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

It is a super-2 number, since 2×81129042 = 131638422626432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507049 + ... + 507064.

Almost surely, 28112904 is an apocalyptic number.

It is an amenable number.

8112904 is a deficient number, since it is larger than the sum of its proper divisors (7098806).

8112904 is a wasteful number, since it uses less digits than its factorization.

8112904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014119 (or 1014115 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 8112904 is about 2848.3159937058. The cubic root of 8112904 is about 200.9364748966.

The spelling of 8112904 in words is "eight million, one hundred twelve thousand, nine hundred four".

Divisors: 1 2 4 8 1014113 2028226 4056452 8112904