Base | Representation |
---|---|
bin | 101110001110… |
… | …101101111100 |
3 | 211210201000110 |
4 | 232032231330 |
5 | 11100301113 |
6 | 1111430020 |
7 | 205003044 |
oct | 56165574 |
9 | 24721013 |
10 | 12118908 |
11 | 692812a |
12 | 4085310 |
13 | 2684169 |
14 | 1876724 |
15 | 10e5bc3 |
hex | b8eb7c |
12118908 has 12 divisors (see below), whose sum is σ = 28277480. Its totient is φ = 4039632.
The previous prime is 12118891. The next prime is 12118921. The reversal of 12118908 is 80981121.
It is a tau number, because it is divible by the number of its divisors (12).
It is a super-2 number, since 2×121189082 = 293735862224928, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504943 + ... + 504966.
Almost surely, 212118908 is an apocalyptic number.
It is an amenable number.
12118908 is an abundant number, since it is smaller than the sum of its proper divisors (16158572).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12118908 is a wasteful number, since it uses less digits than its factorization.
12118908 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1009916 (or 1009914 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 30.
The square root of 12118908 is about 3481.2221991709. Note that the first 3 decimals coincide. The cubic root of 12118908 is about 229.6965626763.
The spelling of 12118908 in words is "twelve million, one hundred eighteen thousand, nine hundred eight".
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