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18305829964 = 2229315090609
BaseRepresentation
bin10001000011000111…
…001100110001001100
31202020202122111212101
4101003013030301030
5244442243024324
612224245244444
71215430662442
oct210307146114
952222574771
1018305829964
117844188aa4
12366a703724
1319596bcb66
14c592bab92
15722169944
hex4431ccc4c

18305829964 has 24 divisors (see below), whose sum is σ = 34208899200. Its totient is φ = 8552221440.

The previous prime is 18305829907. The next prime is 18305829967. The reversal of 18305829964 is 46992850381.

It is not an unprimeable number, because it can be changed into a prime (18305829967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2541709 + ... + 2548900.

It is an arithmetic number, because the mean of its divisors is an integer number (1425370800).

Almost surely, 218305829964 is an apocalyptic number.

It is an amenable number.

18305829964 is a deficient number, since it is larger than the sum of its proper divisors (15903069236).

18305829964 is a wasteful number, since it uses less digits than its factorization.

18305829964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090673 (or 5090671 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 18305829964 in words is "eighteen billion, three hundred five million, eight hundred twenty-nine thousand, nine hundred sixty-four".

Divisors: 1 2 4 29 31 58 62 116 124 899 1798 3596 5090609 10181218 20362436 147627661 157808879 295255322 315617758 590510644 631235516 4576457491 9152914982 18305829964