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16256064245 = 561322972309
BaseRepresentation
bin11110010001110111…
…11101101011110101
31112221220122121220112
433020323331223311
5231243023023440
611245023512405
71113561160211
oct171073755365
945856577815
1016256064245
116992140743
123198158705
1316c0b3cc35
14b02d89941
15652226965
hex3c8efdaf5

16256064245 has 16 divisors (see below), whose sum is σ = 19556071920. Its totient is φ = 12972363264.

The previous prime is 16256064199. The next prime is 16256064247. The reversal of 16256064245 is 54246065261.

It can be written as a sum of positive squares in 8 ways, for example, as 1131245956 + 15124818289 = 33634^2 + 122983^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16256064245 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16256064247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7039151 + ... + 7041459.

It is an arithmetic number, because the mean of its divisors is an integer number (1222254495).

Almost surely, 216256064245 is an apocalyptic number.

It is an amenable number.

16256064245 is a deficient number, since it is larger than the sum of its proper divisors (3300007675).

16256064245 is a wasteful number, since it uses less digits than its factorization.

16256064245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 16256064245 in words is "sixteen billion, two hundred fifty-six million, sixty-four thousand, two hundred forty-five".

Divisors: 1 5 613 2297 2309 3065 11485 11545 1408061 1415417 5303773 7040305 7077085 26518865 3251212849 16256064245