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12000210000 = 243541937569
BaseRepresentation
bin10110010110100010…
…01010110001010000
31010222022111211102020
423023101022301100
5144034023210000
65302434051440
7603243046662
oct131321126120
933868454366
1012000210000
1150a8895429
1223aaa19b80
13119320929c
1481ba74532
154a37b2ba0
hex2cb44ac50

12000210000 has 400 divisors, whose sum is σ = 41952820800. Its totient is φ = 2944512000.

The previous prime is 12000209989. The next prime is 12000210031. The reversal of 12000210000 is 1200021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 21089716 + ... + 21090284.

It is an arithmetic number, because the mean of its divisors is an integer number (104882052).

Almost surely, 212000210000 is an apocalyptic number.

12000210000 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 12000210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20976410400).

12000210000 is an abundant number, since it is smaller than the sum of its proper divisors (29952610800).

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

12000210000 is a wasteful number, since it uses less digits than its factorization.

12000210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 12000210000 its reverse (1200021), we get a palindrome (12001410021).

12000210000 divided by its reverse (1200021) gives a 4-th power (10000 = 104).

The spelling of 12000210000 in words is "twelve billion, two hundred ten thousand".