Base | Representation |
---|---|
bin | 100100010001001000… |
… | …110000101110010000 |
3 | 10201111221122111100100 |
4 | 210101020300232100 |
5 | 1114223201340211 |
6 | 25520110452400 |
7 | 2546011236453 |
oct | 442110605620 |
9 | 121457574310 |
10 | 38942215056 |
11 | 15573957608 |
12 | 7669804100 |
13 | 3897b92704 |
14 | 1c55cdb49a |
15 | 102dbde156 |
hex | 911230b90 |
38942215056 has 30 divisors (see below), whose sum is σ = 108984116150. Its totient is φ = 12980738304.
The previous prime is 38942215033. The next prime is 38942215069. The reversal of 38942215056 is 65051224983.
38942215056 is a `hidden beast` number, since 3 + 89 + 42 + 21 + 505 + 6 = 666.
It can be written as a sum of positive squares in only one way, i.e., 27962528400 + 10979686656 = 167220^2 + 104784^2 .
It is a super-2 number, since 2×389422150562 (a number of 22 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
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, 135215881 + ... + 135216168.
Almost surely, 238942215056 is an apocalyptic number.
38942215056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.
It is an amenable number.
38942215056 is an abundant number, since it is smaller than the sum of its proper divisors (70041901094).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38942215056 is a wasteful number, since it uses less digits than its factorization.
38942215056 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 270432063 (or 270432054 counting only the distinct ones).
The product of its (nonzero) digits is 518400, while the sum is 45.
The spelling of 38942215056 in words is "thirty-eight billion, nine hundred forty-two million, two hundred fifteen thousand, fifty-six".
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