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18224570064 = 243839452537
BaseRepresentation
bin10000111110010001…
…001101111011010000
31202001002202002020110
4100332101031323100
5244310442220224
612212223441320
71213423201221
oct207621157320
952032662213
1018224570064
117802327258
123647456240
13194590b18c
14c4c5a7248
15719e67929
hex43e44ded0

18224570064 has 40 divisors (see below), whose sum is σ = 47136358080. Its totient is φ = 6067602688.

The previous prime is 18224570057. The next prime is 18224570093. The reversal of 18224570064 is 46007542281.

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 7 ways as a sum of consecutive naturals, for example, 185997 + ... + 266540.

It is an arithmetic number, because the mean of its divisors is an integer number (1178408952).

Almost surely, 218224570064 is an apocalyptic number.

It is an amenable number.

18224570064 is an abundant number, since it is smaller than the sum of its proper divisors (28911788016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18224570064 is a wasteful number, since it uses less digits than its factorization.

18224570064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453387 (or 453381 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 18224570064 in words is "eighteen billion, two hundred twenty-four million, five hundred seventy thousand, sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 839 1678 2517 3356 5034 6712 10068 13424 20136 40272 452537 905074 1357611 1810148 2715222 3620296 5430444 7240592 10860888 21721776 379678543 759357086 1139035629 1518714172 2278071258 3037428344 4556142516 6074856688 9112285032 18224570064