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12192881400 = 2334527195659
BaseRepresentation
bin10110101101100000…
…01001101011111000
31011110202001112220000
423112300021223320
5144432334201100
65333515433000
7611102532120
oct132660115370
934422045800
1012192881400
115197622297
122443455760
1311c40c892b
148394a9c80
154b5670900
hex2d6c09af8

12192881400 has 480 divisors, whose sum is σ = 50953584000. Its totient is φ = 2639796480.

The previous prime is 12192881341. The next prime is 12192881411. The reversal of 12192881400 is 418829121.

It is a happy number.

12192881400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2151771 + ... + 2157429.

It is an arithmetic number, because the mean of its divisors is an integer number (106153300).

Almost surely, 212192881400 is an apocalyptic number.

12192881400 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 12192881400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25476792000).

12192881400 is an abundant number, since it is smaller than the sum of its proper divisors (38760702600).

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

12192881400 is a wasteful number, since it uses less digits than its factorization.

12192881400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5713 (or 5695 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The spelling of 12192881400 in words is "twelve billion, one hundred ninety-two million, eight hundred eighty-one thousand, four hundred".