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18379680000 = 2835411592
BaseRepresentation
bin10001000111100000…
…111010100100000000
31202102220121111001220
4101013200322210000
5300120144230000
612235444155040
71220315462613
oct210740724400
952386544056
1018379680000
117881939690
12368b398a80
13196baa8bc6
14c6502217a
157288a61a0
hex44783a900

18379680000 has 540 divisors, whose sum is σ = 67832699088. Its totient is φ = 4380160000.

The previous prime is 18379679977. The next prime is 18379680013. The reversal of 18379680000 is 8697381.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 311519971 + ... + 311520029.

Almost surely, 218379680000 is an apocalyptic number.

18379680000 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 18379680000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33916349544).

18379680000 is an abundant number, since it is smaller than the sum of its proper divisors (49453019088).

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

18379680000 is an frugal number, since it uses more digits than its factorization.

18379680000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 18379680000 in words is "eighteen billion, three hundred seventy-nine million, six hundred eighty thousand".