Base | Representation |
---|---|
bin | 1001001001010… |
… | …0000011000100 |
3 | 2200011122100202 |
4 | 2102110003010 |
5 | 34304331030 |
6 | 3450030032 |
7 | 644004365 |
oct | 222240304 |
9 | 80148322 |
10 | 38355140 |
11 | 1a71786a |
12 | 10a18318 |
13 | 7c3bc65 |
14 | 5145b6c |
15 | 3579745 |
hex | 24940c4 |
38355140 has 48 divisors (see below), whose sum is σ = 83411328. Its totient is φ = 14805504.
The previous prime is 38355137. The next prime is 38355181. The reversal of 38355140 is 4155383.
It is a super-2 number, since 2×383551402 = 2942233528839200, 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 15 ways as a sum of consecutive naturals, for example, 88364 + ... + 88796.
It is an arithmetic number, because the mean of its divisors is an integer number (1737736).
Almost surely, 238355140 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 38355140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41705664).
38355140 is an abundant number, since it is smaller than the sum of its proper divisors (45056188).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38355140 is a wasteful number, since it uses less digits than its factorization.
38355140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 588 (or 586 counting only the distinct ones).
The product of its (nonzero) digits is 7200, while the sum is 29.
The square root of 38355140 is about 6193.1526704902. The cubic root of 38355140 is about 337.2416385763.
The spelling of 38355140 in words is "thirty-eight million, three hundred fifty-five thousand, one hundred forty".
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