Base | Representation |
---|---|
bin | 1001010000100… |
… | …0010101111000 |
3 | 2201001211202222 |
4 | 2110020111320 |
5 | 34420101410 |
6 | 3504143212 |
7 | 651030212 |
oct | 224102570 |
9 | 81054688 |
10 | 38831480 |
11 | 1aa12736 |
12 | 11007b08 |
13 | 8077a0c |
14 | 522b5b2 |
15 | 3620955 |
hex | 2508578 |
38831480 has 16 divisors (see below), whose sum is σ = 87370920. Its totient is φ = 15532576.
The previous prime is 38831479. The next prime is 38831483. The reversal of 38831480 is 8413883.
It is a self number, because there is not a number n which added to its sum of digits gives 38831480.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38831483) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485354 + ... + 485433.
Almost surely, 238831480 is an apocalyptic number.
It is an amenable number.
38831480 is an abundant number, since it is smaller than the sum of its proper divisors (48539440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38831480 is a wasteful number, since it uses less digits than its factorization.
38831480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 970798 (or 970794 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 35.
The square root of 38831480 is about 6231.4909933338. The cubic root of 38831480 is about 338.6319886855.
The spelling of 38831480 in words is "thirty-eight million, eight hundred thirty-one thousand, four hundred eighty".
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