Base | Representation |
---|---|
bin | 100011101101100100… |
… | …010011001100110000 |
3 | 10122222100201220121020 |
4 | 203231210103030300 |
5 | 1112012414020014 |
6 | 25340552055440 |
7 | 2525143661436 |
oct | 435544231460 |
9 | 118870656536 |
10 | 38345454384 |
11 | 15298011476 |
12 | 7521994580 |
13 | 380135c3a3 |
14 | 1bda958d56 |
15 | ee66111a9 |
hex | 8ed913330 |
38345454384 has 40 divisors (see below), whose sum is σ = 101736367920. Its totient is φ = 12436363008.
The previous prime is 38345454349. The next prime is 38345454397. The reversal of 38345454384 is 48345454383.
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, 10793679 + ... + 10797230.
It is an arithmetic number, because the mean of its divisors is an integer number (2543409198).
Almost surely, 238345454384 is an apocalyptic number.
It is an amenable number.
38345454384 is an abundant number, since it is smaller than the sum of its proper divisors (63390913536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38345454384 is a wasteful number, since it uses less digits than its factorization.
38345454384 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21590957 (or 21590951 counting only the distinct ones).
The product of its digits is 11059200, while the sum is 51.
Subtracting 38345454384 from its reverse (48345454383), we obtain a palindrome (9999999999).
The spelling of 38345454384 in words is "thirty-eight billion, three hundred forty-five million, four hundred fifty-four thousand, three hundred eighty-four".
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