Base | Representation |
---|---|
bin | 10001000111000101… |
… | …111011110001000100 |
3 | 1202102102022010210120 |
4 | 101013011323301010 |
5 | 300111341411134 |
6 | 12235032421540 |
7 | 1220201404011 |
oct | 210705736104 |
9 | 52372263716 |
10 | 18372607044 |
11 | 7878948670 |
12 | 3688b478b0 |
13 | 196a4a071c |
14 | c64100708 |
15 | 727e5a649 |
hex | 44717bc44 |
18372607044 has 48 divisors (see below), whose sum is σ = 46960769856. Its totient is φ = 5544345600.
The previous prime is 18372606997. The next prime is 18372607063. The reversal of 18372607044 is 44070627381.
It is a junction number, because it is equal to n+sod(n) for n = 18372606987 and 18372607005.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256957 + ... + 320580.
It is an arithmetic number, because the mean of its divisors is an integer number (978349372).
Almost surely, 218372607044 is an apocalyptic number.
It is an amenable number.
18372607044 is an abundant number, since it is smaller than the sum of its proper divisors (28588162812).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18372607044 is a wasteful number, since it uses less digits than its factorization.
18372607044 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 577796 (or 577794 counting only the distinct ones).
The product of its (nonzero) digits is 225792, while the sum is 42.
The spelling of 18372607044 in words is "eighteen billion, three hundred seventy-two million, six hundred seven thousand, forty-four".
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