Search a number
-
+
18297024000 = 29353233409
BaseRepresentation
bin10001000010100101…
…100110111000000000
31202020011002010100120
4101002211212320000
5244433014232000
612223332420240
71215263065203
oct210245467000
952204063316
1018297024000
11783a213a42
123667777680
131957928928
14c5806793a
157214ca6a0
hex442966e00

18297024000 has 320 divisors, whose sum is σ = 61243490880. Its totient is φ = 4846387200.

The previous prime is 18297023929. The next prime is 18297024013. The reversal of 18297024000 is 42079281.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44735796 + ... + 44736204.

It is an arithmetic number, because the mean of its divisors is an integer number (191385909).

Almost surely, 218297024000 is an apocalyptic number.

18297024000 is a gapful number since it is divisible by the number (10) 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 18297024000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30621745440).

18297024000 is an abundant number, since it is smaller than the sum of its proper divisors (42946466880).

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

18297024000 is an equidigital number, since it uses as much as digits as its factorization.

18297024000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 18297024000 in words is "eighteen billion, two hundred ninety-seven million, twenty-four thousand".