Base | Representation |
---|---|
bin | 100100000111100111… |
… | …011110011110100110 |
3 | 10201002211002212010000 |
4 | 210013213132132212 |
5 | 1113411304312010 |
6 | 25452203242130 |
7 | 2542031523315 |
oct | 440747363646 |
9 | 121084085100 |
10 | 38782494630 |
11 | 154a1786260 |
12 | 7624219346 |
13 | 3870a6c299 |
14 | 1c3ca0227c |
15 | 101eb8e7c0 |
hex | 9079de7a6 |
38782494630 has 160 divisors (see below), whose sum is σ = 113911142400. Its totient is φ = 9389494080.
The previous prime is 38782494563. The next prime is 38782494631. The reversal of 38782494630 is 3649428783.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38782494631) by changing a digit.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8078971 + ... + 8083769.
It is an arithmetic number, because the mean of its divisors is an integer number (711944640).
Almost surely, 238782494630 is an apocalyptic number.
38782494630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 38782494630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56955571200).
38782494630 is an abundant number, since it is smaller than the sum of its proper divisors (75128647770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38782494630 is a wasteful number, since it uses less digits than its factorization.
38782494630 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5736 (or 5727 counting only the distinct ones).
The product of its (nonzero) digits is 6967296, while the sum is 54.
The spelling of 38782494630 in words is "thirty-eight billion, seven hundred eighty-two million, four hundred ninety-four thousand, six hundred thirty".
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