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18375672084 = 22373111941521
BaseRepresentation
bin10001000111010001…
…101000000100010100
31202102122001212020120
4101013101220010110
5300113133001314
612235222231540
71220236431000
oct210721500424
952378055216
1018375672084
11787a651460
123689b855b0
13196b004863
14c6469b700
157283638a9
hex447468114

18375672084 has 384 divisors, whose sum is σ = 58931712000. Its totient is φ = 4402944000.

The previous prime is 18375672083. The next prime is 18375672089. The reversal of 18375672084 is 48027657381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18375672083) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 35269744 + ... + 35270264.

It is an arithmetic number, because the mean of its divisors is an integer number (153468000).

Almost surely, 218375672084 is an apocalyptic number.

18375672084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18375672084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29465856000).

18375672084 is an abundant number, since it is smaller than the sum of its proper divisors (40556039916).

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

18375672084 is a wasteful number, since it uses less digits than its factorization.

18375672084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 18375672084 in words is "eighteen billion, three hundred seventy-five million, six hundred seventy-two thousand, eighty-four".