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18372607044 = 22311241577537
BaseRepresentation
bin10001000111000101…
…111011110001000100
31202102102022010210120
4101013011323301010
5300111341411134
612235032421540
71220201404011
oct210705736104
952372263716
1018372607044
117878948670
123688b478b0
13196a4a071c
14c64100708
15727e5a649
hex44717bc44

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".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 241 482 723 964 1446 2651 2892 5302 7953 10604 15906 31812 577537 1155074 1732611 2310148 3465222 6352907 6930444 12705814 19058721 25411628 38117442 76234884 139186417 278372834 417559251 556745668 835118502 1531050587 1670237004 3062101174 4593151761 6124202348 9186303522 18372607044