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12244938720 = 2535723158449
BaseRepresentation
bin10110110011101101…
…01110111111100000
31011121101000100002220
423121312232333200
5200034201014340
65343015311040
7612304155540
oct133166567740
934541010086
1012244938720
115213a48773
12245897b480
131201b24591
1484237b320
154ba004ed0
hex2d9daefe0

12244938720 has 192 divisors, whose sum is σ = 45998668800. Its totient is φ = 2677137408.

The previous prime is 12244938707. The next prime is 12244938781. The reversal of 12244938720 is 2783944221.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1945 + ... + 156504.

It is an arithmetic number, because the mean of its divisors is an integer number (239576400).

Almost surely, 212244938720 is an apocalyptic number.

12244938720 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 12244938720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22999334400).

12244938720 is an abundant number, since it is smaller than the sum of its proper divisors (33753730080).

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

12244938720 is a wasteful number, since it uses less digits than its factorization.

12244938720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158497 (or 158489 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 12244938720 in words is "twelve billion, two hundred forty-four million, nine hundred thirty-eight thousand, seven hundred twenty".