Base | Representation |
---|---|
bin | 10001000111000101… |
… | …111011110001000101 |
3 | 1202102102022010210121 |
4 | 101013011323301011 |
5 | 300111341411140 |
6 | 12235032421541 |
7 | 1220201404012 |
oct | 210705736105 |
9 | 52372263717 |
10 | 18372607045 |
11 | 7878948671 |
12 | 3688b478b1 |
13 | 196a4a0720 |
14 | c64100709 |
15 | 727e5a64a |
hex | 44717bc45 |
18372607045 has 16 divisors (see below), whose sum is σ = 23746327920. Its totient is φ = 13565597184.
The previous prime is 18372606997. The next prime is 18372607063. The reversal of 18372607045 is 54070627381.
It can be written as a sum of positive squares in 8 ways, for example, as 835961569 + 17536645476 = 28913^2 + 132426^2 .
It is a cyclic number.
It is not a de Polignac number, because 18372607045 - 215 = 18372574277 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 18372606992 and 18372607010.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614401 + ... + 643609.
It is an arithmetic number, because the mean of its divisors is an integer number (1484145495).
Almost surely, 218372607045 is an apocalyptic number.
It is an amenable number.
18372607045 is a deficient number, since it is larger than the sum of its proper divisors (5373720875).
18372607045 is a wasteful number, since it uses less digits than its factorization.
18372607045 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38904.
The product of its (nonzero) digits is 282240, while the sum is 43.
The spelling of 18372607045 in words is "eighteen billion, three hundred seventy-two million, six hundred seven thousand, forty-five".
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