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256168150560 = 253657319337
BaseRepresentation
bin1110111010010011001…
…1111100011000100000
3220111012210120101000000
43232210303330120200
513144113021304220
6313403152300000
724336041232000
oct3564463743040
9814183511000
10256168150560
1199705274043
1241792241600
131b205c4021a
14c581ab2000
1569e45b9390
hex3ba4cfc620

256168150560 has 1344 divisors, whose sum is σ = 1117168416000. Its totient is φ = 55306395648.

The previous prime is 256168150559. The next prime is 256168150607. The reversal of 256168150560 is 65051861652.

256168150560 is a `hidden beast` number, since 2 + 5 + 6 + 1 + 6 + 81 + 5 + 0 + 560 = 666.

256168150560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2561681505602 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 223 ways as a sum of consecutive naturals, for example, 760142712 + ... + 760143048.

It is an arithmetic number, because the mean of its divisors is an integer number (831226500).

Almost surely, 2256168150560 is an apocalyptic number.

256168150560 is a gapful number since it is divisible by the number (20) 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 256168150560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558584208000).

256168150560 is an abundant number, since it is smaller than the sum of its proper divisors (861000265440).

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

256168150560 is an equidigital number, since it uses as much as digits as its factorization.

256168150560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 373 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 45.

The spelling of 256168150560 in words is "two hundred fifty-six billion, one hundred sixty-eight million, one hundred fifty thousand, five hundred sixty".