Base | Representation |
---|---|
bin | 10001001010001110… |
… | …001101001110101100 |
3 | 1202120002002102201011 |
4 | 101022032031032230 |
5 | 300213311413442 |
6 | 12244145555004 |
7 | 1221406554130 |
oct | 211216151654 |
9 | 52502072634 |
10 | 18425107372 |
11 | 78a5546971 |
12 | 36a2645a64 |
13 | 1978322bc9 |
14 | c6b0893c0 |
15 | 72c87b117 |
hex | 44a38d3ac |
18425107372 has 12 divisors (see below), whose sum is σ = 36850214800. Its totient is φ = 7896474576.
The previous prime is 18425107357. The next prime is 18425107373. The reversal of 18425107372 is 27370152481.
18425107372 is an admirable number.
It is not an unprimeable number, because it can be changed into a prime (18425107373) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329019747 + ... + 329019802.
Almost surely, 218425107372 is an apocalyptic number.
It is an amenable number.
18425107372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18425107372 is a wasteful number, since it uses less digits than its factorization.
18425107372 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 658039560 (or 658039558 counting only the distinct ones).
The product of its (nonzero) digits is 94080, while the sum is 40.
The spelling of 18425107372 in words is "eighteen billion, four hundred twenty-five million, one hundred seven thousand, three hundred seventy-two".
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