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1868988096 = 263223711987
BaseRepresentation
bin110111101100110…
…0111111011000000
311211020211102200100
41233121213323000
512311430104341
6505242522400
764213064613
oct15731477300
94736742610
101868988096
11879aa4468
12441b06400
1323a296121
1413a31417a
15ae1343b6
hex6f667ec0

1868988096 has 168 divisors, whose sum is σ = 5671620864. Its totient is φ = 587220480.

The previous prime is 1868988071. The next prime is 1868988097. The reversal of 1868988096 is 6908898681.

It is not an unprimeable number, because it can be changed into a prime (1868988097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 939615 + ... + 941601.

It is an arithmetic number, because the mean of its divisors is an integer number (33759648).

Almost surely, 21868988096 is an apocalyptic number.

1868988096 is a gapful number since it is divisible by the number (16) 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 1868988096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2835810432).

1868988096 is an abundant number, since it is smaller than the sum of its proper divisors (3802632768).

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

1868988096 is a wasteful number, since it uses less digits than its factorization.

1868988096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099 (or 2086 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 63.

The square root of 1868988096 is about 43231.7949662051. The cubic root of 1868988096 is about 1231.7867033900.

The spelling of 1868988096 in words is "one billion, eight hundred sixty-eight million, nine hundred eighty-eight thousand, ninety-six".