Base | Representation |
---|---|
bin | 1001010001000… |
… | …0101100010000 |
3 | 2201010120200122 |
4 | 2110100230100 |
5 | 34422200210 |
6 | 3505005412 |
7 | 651232010 |
oct | 224205420 |
9 | 81116618 |
10 | 38865680 |
11 | 1aa363a7 |
12 | 11023868 |
13 | 808a459 |
14 | 5239c40 |
15 | 362ab55 |
hex | 2510b10 |
38865680 has 40 divisors (see below), whose sum is σ = 103273152. Its totient is φ = 13325184.
The previous prime is 38865649. The next prime is 38865703. The reversal of 38865680 is 8656883.
It is a tau number, because it is divible by the number of its divisors (40).
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, 34142 + ... + 35261.
Almost surely, 238865680 is an apocalyptic number.
It is an amenable number.
38865680 is an abundant number, since it is smaller than the sum of its proper divisors (64407472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38865680 is a wasteful number, since it uses less digits than its factorization.
38865680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 69423 (or 69417 counting only the distinct ones).
The product of its (nonzero) digits is 276480, while the sum is 44.
The square root of 38865680 is about 6234.2345159610. The cubic root of 38865680 is about 338.7313738210.
The spelling of 38865680 in words is "thirty-eight million, eight hundred sixty-five thousand, six hundred eighty".
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