Base | Representation |
---|---|
bin | 11101101001101110… |
… | …000000010101100010 |
3 | 10001011212122021020100 |
4 | 131221232000111202 |
5 | 1010201120020004 |
6 | 22343144123230 |
7 | 2204662156413 |
oct | 355156002542 |
9 | 101155567210 |
10 | 31838438754 |
11 | 12558a72301 |
12 | 6206766516 |
13 | 3005223195 |
14 | 178068980a |
15 | c65226739 |
hex | 769b80562 |
31838438754 has 12 divisors (see below), whose sum is σ = 68983284006. Its totient is φ = 10612812912.
The previous prime is 31838438743. The next prime is 31838438783. The reversal of 31838438754 is 45783483813.
It is a happy number.
31838438754 is a `hidden beast` number, since 3 + 183 + 84 + 387 + 5 + 4 = 666.
It can be written as a sum of positive squares in only one way, i.e., 20728224729 + 11110214025 = 143973^2 + 105405^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 31838438754.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 884401059 + ... + 884401094.
Almost surely, 231838438754 is an apocalyptic number.
31838438754 is an abundant number, since it is smaller than the sum of its proper divisors (37144845252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31838438754 is a wasteful number, since it uses less digits than its factorization.
31838438754 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1768802161 (or 1768802158 counting only the distinct ones).
The product of its digits is 7741440, while the sum is 54.
The spelling of 31838438754 in words is "thirty-one billion, eight hundred thirty-eight million, four hundred thirty-eight thousand, seven hundred fifty-four".
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