Base | Representation |
---|---|
bin | 1011010011111000111… |
… | …01010100110100011000 |
3 | 1101011010122112120221120 |
4 | 11221330131110310120 |
5 | 22331411042300442 |
6 | 454311515205240 |
7 | 40035512001540 |
oct | 5517435246430 |
9 | 1334118476846 |
10 | 388635118872 |
11 | 13a901435a60 |
12 | 633a1146820 |
13 | 2a856c4a300 |
14 | 14b4aa70320 |
15 | a198cd14ec |
hex | 5a7c754d18 |
388635118872 has 192 divisors, whose sum is σ = 1311678178560. Its totient is φ = 93179174400.
The previous prime is 388635118819. The next prime is 388635118889. The reversal of 388635118872 is 278811536883.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 309879 + ... + 934502.
It is an arithmetic number, because the mean of its divisors is an integer number (6831657180).
Almost surely, 2388635118872 is an apocalyptic number.
It is an amenable number.
388635118872 is an abundant number, since it is smaller than the sum of its proper divisors (923043059688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
388635118872 is a wasteful number, since it uses less digits than its factorization.
388635118872 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1244434 (or 1244417 counting only the distinct ones).
The product of its digits is 15482880, while the sum is 60.
The spelling of 388635118872 in words is "three hundred eighty-eight billion, six hundred thirty-five million, one hundred eighteen thousand, eight hundred seventy-two".
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