Base | Representation |
---|---|
bin | 100100001110111100… |
… | …001100001110001000 |
3 | 10201102101022100002200 |
4 | 210032330030032020 |
5 | 1114134233143014 |
6 | 25512313000200 |
7 | 2545053102144 |
oct | 441674141610 |
9 | 121371270080 |
10 | 38905365384 |
11 | 15555078936 |
12 | 76593b3060 |
13 | 389035ca82 |
14 | 1c51068224 |
15 | 102a860a09 |
hex | 90ef0c388 |
38905365384 has 96 divisors (see below), whose sum is σ = 105768600600. Its totient is φ = 12919357440.
The previous prime is 38905365383. The next prime is 38905365413. The reversal of 38905365384 is 48356350983.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 35800424100 + 3104941284 = 189210^2 + 55722^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 38905365384.
It is not an unprimeable number, because it can be changed into a prime (38905365383) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33742152 + ... + 33743304.
Almost surely, 238905365384 is an apocalyptic number.
It is an amenable number.
38905365384 is an abundant number, since it is smaller than the sum of its proper divisors (66863235216).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38905365384 is a wasteful number, since it uses less digits than its factorization.
38905365384 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2535 (or 2528 counting only the distinct ones).
The product of its (nonzero) digits is 9331200, while the sum is 54.
The spelling of 38905365384 in words is "thirty-eight billion, nine hundred five million, three hundred sixty-five thousand, three hundred eighty-four".
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