Base | Representation |
---|---|
bin | 1100100010101… |
… | …01000010010100 |
3 | 21022222000101010 |
4 | 12101111002110 |
5 | 203413042113 |
6 | 14234532220 |
7 | 2415143523 |
oct | 621250224 |
9 | 238860333 |
10 | 105205908 |
11 | 54427835 |
12 | 2b297070 |
13 | 18a47222 |
14 | dd884ba |
15 | 93821c3 |
hex | 6455094 |
105205908 has 24 divisors (see below), whose sum is σ = 245760480. Its totient is φ = 35028640.
The previous prime is 105205871. The next prime is 105205913. The reversal of 105205908 is 809502501.
It is a super-2 number, since 2×1052059082 = 22136566156208928, 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 7 ways as a sum of consecutive naturals, for example, 7138 + ... + 16166.
It is an arithmetic number, because the mean of its divisors is an integer number (10240020).
Almost surely, 2105205908 is an apocalyptic number.
It is an amenable number.
105205908 is an abundant number, since it is smaller than the sum of its proper divisors (140554572).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
105205908 is a wasteful number, since it uses less digits than its factorization.
105205908 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10007 (or 10005 counting only the distinct ones).
The product of its (nonzero) digits is 3600, while the sum is 30.
The square root of 105205908 is about 10256.9931266429. The cubic root of 105205908 is about 472.0775810903.
The spelling of 105205908 in words is "one hundred five million, two hundred five thousand, nine hundred eight".
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