Base | Representation |
---|---|
bin | 10011101010000110… |
… | …011010000000101010 |
3 | 2000111000022212222000 |
4 | 103222012122000222 |
5 | 321211444322010 |
6 | 13410245111430 |
7 | 1345030041162 |
oct | 235206320052 |
9 | 60430285860 |
10 | 21107417130 |
11 | 8a5164a998 |
12 | 41109b8576 |
13 | 1cb4c54647 |
14 | 10433d55a2 |
15 | 8380b97c0 |
hex | 4ea19a02a |
21107417130 has 64 divisors (see below), whose sum is σ = 58227379200. Its totient is φ = 5434551360.
The previous prime is 21107417119. The next prime is 21107417137. The reversal of 21107417130 is 3171470112.
21107417130 is a `hidden beast` number, since 2 + 110 + 7 + 417 + 130 = 666.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 21107417094 and 21107417103.
It is not an unprimeable number, because it can be changed into a prime (21107417137) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1340026 + ... + 1355685.
It is an arithmetic number, because the mean of its divisors is an integer number (909802800).
Almost surely, 221107417130 is an apocalyptic number.
21107417130 is an abundant number, since it is smaller than the sum of its proper divisors (37119962070).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
21107417130 is a wasteful number, since it uses less digits than its factorization.
21107417130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2695756 (or 2695750 counting only the distinct ones).
The product of its (nonzero) digits is 1176, while the sum is 27.
Adding to 21107417130 its reverse (3171470112), we get a palindrome (24278887242).
The spelling of 21107417130 in words is "twenty-one billion, one hundred seven million, four hundred seventeen thousand, one hundred thirty".
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