Base | Representation |
---|---|
bin | 10000110111010001… |
… | …001100110000100100 |
3 | 1201201220202020120211 |
4 | 100313101030300210 |
5 | 244040410443042 |
6 | 12152430305204 |
7 | 1210466010142 |
oct | 206721146044 |
9 | 51656666524 |
10 | 18107124772 |
11 | 7751aaa930 |
12 | 3614058204 |
13 | 192749a019 |
14 | c3ab54592 |
15 | 70e9b9017 |
hex | 43744cc24 |
18107124772 has 24 divisors (see below), whose sum is σ = 34571607840. Its totient is φ = 8229687360.
The previous prime is 18107124743. The next prime is 18107124797. The reversal of 18107124772 is 27742170181.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737104 + ... + 761272.
It is an arithmetic number, because the mean of its divisors is an integer number (1440483660).
Almost surely, 218107124772 is an apocalyptic number.
It is an amenable number.
18107124772 is a deficient number, since it is larger than the sum of its proper divisors (16464483068).
18107124772 is a wasteful number, since it uses less digits than its factorization.
18107124772 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41211 (or 41209 counting only the distinct ones).
The product of its (nonzero) digits is 43904, while the sum is 40.
The spelling of 18107124772 in words is "eighteen billion, one hundred seven million, one hundred twenty-four thousand, seven hundred seventy-two".
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