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12550680608 = 253735330029
BaseRepresentation
bin10111011000001010…
…00011000000100000
31012101200022122010112
423230011003000200
5201200433234413
65433220350452
7623006011364
oct135405030040
935350278115
1012550680608
115360594114
122523245428
131250282a3b
14870c072a4
154d6c9a2a8
hex2ec143020

12550680608 has 48 divisors (see below), whose sum is σ = 25449704280. Its totient is φ = 6088237056.

The previous prime is 12550680557. The next prime is 12550680647. The reversal of 12550680608 is 80608605521.

It can be written as a sum of positive squares in 4 ways, for example, as 12362771344 + 187909264 = 111188^2 + 13708^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402938 + ... + 432966.

Almost surely, 212550680608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12550680608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12724852140).

12550680608 is an abundant number, since it is smaller than the sum of its proper divisors (12899023672).

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

12550680608 is a wasteful number, since it uses less digits than its factorization.

12550680608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30429 (or 30421 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 12550680608 in words is "twelve billion, five hundred fifty million, six hundred eighty thousand, six hundred eight".

Divisors: 1 2 4 8 16 32 37 74 148 296 353 592 706 1184 1412 2824 5648 11296 13061 26122 30029 52244 60058 104488 120116 208976 240232 417952 480464 960928 1111073 2222146 4444292 8888584 10600237 17777168 21200474 35554336 42400948 84801896 169603792 339207584 392208769 784417538 1568835076 3137670152 6275340304 12550680608