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12300012000 = 25345337963
BaseRepresentation
bin10110111010010001…
…10100100111100000
31011202012122100110000
423131020310213200
5200142300341000
65352303540000
7613543243203
oct133510644740
934665570400
1012300012000
115242044081
1224732ba600
131210367c13
148497d593a
154bec83000
hex2dd2349e0

12300012000 has 240 divisors, whose sum is σ = 45146333232. Its totient is φ = 3279916800.

The previous prime is 12300011993. The next prime is 12300012017. The reversal of 12300012000 is 21000321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 305019 + ... + 342981.

Almost surely, 212300012000 is an apocalyptic number.

12300012000 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 12300012000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22573166616).

12300012000 is an abundant number, since it is smaller than the sum of its proper divisors (32846321232).

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

12300012000 is an equidigital number, since it uses as much as digits as its factorization.

12300012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38000 (or 37973 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 12300012000 its reverse (21000321), we get a palindrome (12321012321).

The spelling of 12300012000 in words is "twelve billion, three hundred million, twelve thousand".