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255882994388 = 2279138678371
BaseRepresentation
bin1110111001001111010…
…0001010001011010100
3220110110220222221021022
43232103310022023110
513143022021310023
6313315004340312
724326006364620
oct3562364121324
9813426887238
10255882994388
1199579308a8a
1241712844698
131b18bb3b968
14c555c84180
1569c953d7c8
hex3b93d0a2d4

255882994388 has 12 divisors (see below), whose sum is σ = 511765988832. Its totient is φ = 109664140440.

The previous prime is 255882994387. The next prime is 255882994403. The reversal of 255882994388 is 883499288552.

255882994388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

255882994388 is an admirable number.

It is a super-2 number, since 2×2558829943882 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255882994387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4569339158 + ... + 4569339213.

It is an arithmetic number, because the mean of its divisors is an integer number (42647165736).

Almost surely, 2255882994388 is an apocalyptic number.

255882994388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

255882994388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

255882994388 is a wasteful number, since it uses less digits than its factorization.

255882994388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9138678382 (or 9138678380 counting only the distinct ones).

The product of its digits is 398131200, while the sum is 71.

The spelling of 255882994388 in words is "two hundred fifty-five billion, eight hundred eighty-two million, nine hundred ninety-four thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 9138678371 18277356742 36554713484 63970748597 127941497194 255882994388