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12550012992 = 26351173361
BaseRepresentation
bin10111011000000101…
…00000000001000000
31012101122001201100000
423230002200001000
5201200300403432
65433154200000
7623000231106
oct135402400100
935348051300
1012550012992
115360178570
122522b83000
1312500aabba
14870ab1c76
154d6bb757c
hex2ec0a0040

12550012992 has 168 divisors, whose sum is σ = 40696542432. Its totient is φ = 3802982400.

The previous prime is 12550012967. The next prime is 12550013011. The reversal of 12550012992 is 29921005521.

It is a happy number.

12550012992 is a `hidden beast` number, since 1 + 2 + 550 + 0 + 12 + 9 + 92 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134392 + ... + 207752.

It is an arithmetic number, because the mean of its divisors is an integer number (242241324).

Almost surely, 212550012992 is an apocalyptic number.

12550012992 is a gapful number since it is divisible by the number (12) 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 12550012992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20348271216).

12550012992 is an abundant number, since it is smaller than the sum of its proper divisors (28146529440).

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

12550012992 is an equidigital number, since it uses as much as digits as its factorization.

12550012992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73399 (or 73377 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The spelling of 12550012992 in words is "twelve billion, five hundred fifty million, twelve thousand, nine hundred ninety-two".