Base | Representation |
---|---|
bin | 10001101011100101011110… |
… | …11010000100011001110000 |
3 | 12002122222121211012010010100 |
4 | 20311302233122010121300 |
5 | 20044011230110404333 |
6 | 214405402340032400 |
7 | 11122026045626202 |
oct | 1065625732043160 |
9 | 162588554163110 |
10 | 38880986809968 |
11 | 11430374479a96 |
12 | 443b48b992700 |
13 | 18905cc6b41b4 |
14 | 985bc7c02772 |
15 | 4765b4e78213 |
hex | 235caf684670 |
38880986809968 has 30 divisors (see below), whose sum is σ = 108812761697744. Its totient is φ = 12960328936608.
The previous prime is 38880986809967. The next prime is 38880986810027. The reversal of 38880986809968 is 86990868908883.
38880986809968 is a `hidden beast` number, since 388 + 8 + 0 + 9 + 8 + 6 + 80 + 99 + 68 = 666.
It is a super-2 number, since 2×388809868099682 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38880986809967) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135003426280 + ... + 135003426567.
Almost surely, 238880986809968 is an apocalyptic number.
It is an amenable number.
38880986809968 is an abundant number, since it is smaller than the sum of its proper divisors (69931774887776).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38880986809968 is a wasteful number, since it uses less digits than its factorization.
38880986809968 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 270006852861 (or 270006852852 counting only the distinct ones).
The product of its (nonzero) digits is 20639121408, while the sum is 90.
The spelling of 38880986809968 in words is "thirty-eight trillion, eight hundred eighty billion, nine hundred eighty-six million, eight hundred nine thousand, nine hundred sixty-eight".
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