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18495482250 = 235372925971
BaseRepresentation
bin10001001110011010…
…101010100110001010
31202201222111211220010
4101032122222212022
5300334320413000
612255142212350
71223223001530
oct211632524612
952658454803
1018495482250
117931243623
1237021240b6
131989a9324b
14c76568150
15733b2cd50
hex44e6aa98a

18495482250 has 384 divisors, whose sum is σ = 56350494720. Its totient is φ = 3956064000.

The previous prime is 18495482237. The next prime is 18495482273. The reversal of 18495482250 is 5228459481.

It is a self number, because there is not a number n which added to its sum of digits gives 18495482250.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 260499715 + ... + 260499785.

It is an arithmetic number, because the mean of its divisors is an integer number (146746080).

Almost surely, 218495482250 is an apocalyptic number.

18495482250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18495482250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28175247360).

18495482250 is an abundant number, since it is smaller than the sum of its proper divisors (37855012470).

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

18495482250 is a wasteful number, since it uses less digits than its factorization.

18495482250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 18495482250 in words is "eighteen billion, four hundred ninety-five million, four hundred eighty-two thousand, two hundred fifty".