Base | Representation |
---|---|
bin | 100100001111100001… |
… | …000101101010101111 |
3 | 10201110001111202020221 |
4 | 210033201011222233 |
5 | 1114144222202441 |
6 | 25513300152211 |
7 | 2545231235623 |
oct | 441741055257 |
9 | 121401452227 |
10 | 38915037871 |
11 | 1555a584a26 |
12 | 7660698667 |
13 | 3892368538 |
14 | 1c52465183 |
15 | 102b6218d1 |
hex | 90f845aaf |
38915037871 has 2 divisors, whose sum is σ = 38915037872. Its totient is φ = 38915037870.
The previous prime is 38915037859. The next prime is 38915037919. The reversal of 38915037871 is 17873051983.
38915037871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 38915037871 - 27 = 38915037743 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38915034871) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19457518935 + 19457518936.
It is an arithmetic number, because the mean of its divisors is an integer number (19457518936).
Almost surely, 238915037871 is an apocalyptic number.
38915037871 is a deficient number, since it is larger than the sum of its proper divisors (1).
38915037871 is an equidigital number, since it uses as much as digits as its factorization.
38915037871 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1270080, while the sum is 52.
The spelling of 38915037871 in words is "thirty-eight billion, nine hundred fifteen million, thirty-seven thousand, eight hundred seventy-one".
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