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2560405060 = 225197649849
BaseRepresentation
bin1001100010011100…
…1010111001000100
320121102212001110001
42120213022321010
520220430430220
61102022211044
7120310040533
oct23047127104
96542761401
102560405060
1110a4311244
125b5583a84
1331a5bb8a5
141a409631a
15eebad80a
hex989cae44

2560405060 has 24 divisors (see below), whose sum is σ = 5404152600. Its totient is φ = 1018961664.

The previous prime is 2560405039. The next prime is 2560405061. The reversal of 2560405060 is 605040652.

It can be written as a sum of positive squares in 4 ways, for example, as 1131111424 + 1429293636 = 33632^2 + 37806^2 .

It is not an unprimeable number, because it can be changed into a prime (2560405061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320985 + ... + 328864.

It is an arithmetic number, because the mean of its divisors is an integer number (225173025).

Almost surely, 22560405060 is an apocalyptic number.

2560405060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2560405060 is an abundant number, since it is smaller than the sum of its proper divisors (2843747540).

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

2560405060 is a wasteful number, since it uses less digits than its factorization.

2560405060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650055 (or 650053 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2560405060 is about 50600.4452549580. The cubic root of 2560405060 is about 1368.0529038339.

The spelling of 2560405060 in words is "two billion, five hundred sixty million, four hundred five thousand, sixty".

Divisors: 1 2 4 5 10 20 197 394 788 985 1970 3940 649849 1299698 2599396 3249245 6498490 12996980 128020253 256040506 512081012 640101265 1280202530 2560405060