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11985120000 = 28325472941
BaseRepresentation
bin10110010100101111…
…00110101100000000
31010221021010011211100
423022113212230000
5144021142320000
65301134414400
7603000560550
oct131227465400
933837104740
1011985120000
1150a0319057
1223a5961400
1311900549a9
14819a67160
154a22d1a00
hex2ca5e6b00

11985120000 has 1080 divisors, whose sum is σ = 52296884640. Its totient is φ = 2580480000.

The previous prime is 11985119989. The next prime is 11985120023. The reversal of 11985120000 is 2158911.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 292319980 + ... + 292320020.

Almost surely, 211985120000 is an apocalyptic number.

11985120000 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 11985120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26148442320).

11985120000 is an abundant number, since it is smaller than the sum of its proper divisors (40311764640).

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

11985120000 is an equidigital number, since it uses as much as digits as its factorization.

11985120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

Adding to 11985120000 its reverse (2158911), we get a palindrome (11987278911).

The spelling of 11985120000 in words is "eleven billion, nine hundred eighty-five million, one hundred twenty thousand".