Base | Representation |
---|---|
bin | 100100001010011110… |
… | …001011011001101000 |
3 | 10201020011020010121122 |
4 | 210022132023121220 |
5 | 1114011034420330 |
6 | 25501033554412 |
7 | 2543152600505 |
oct | 441236133150 |
9 | 121204203548 |
10 | 38830388840 |
11 | 15516818951 |
12 | 7638275a08 |
13 | 387a96b059 |
14 | 1c4510c4ac |
15 | 1023ea05e5 |
hex | 90a78b668 |
38830388840 has 64 divisors (see below), whose sum is σ = 92582092800. Its totient is φ = 14606742528.
The previous prime is 38830388833. The next prime is 38830388867. The reversal of 38830388840 is 4888303883.
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, 847397 + ... + 892043.
It is an arithmetic number, because the mean of its divisors is an integer number (1446595200).
Almost surely, 238830388840 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 38830388840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46291046400).
38830388840 is an abundant number, since it is smaller than the sum of its proper divisors (53751703960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38830388840 is a wasteful number, since it uses less digits than its factorization.
38830388840 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45954 (or 45950 counting only the distinct ones).
The product of its (nonzero) digits is 3538944, while the sum is 53.
The spelling of 38830388840 in words is "thirty-eight billion, eight hundred thirty million, three hundred eighty-eight thousand, eight hundred forty".
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