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560405993 = 7217366109
BaseRepresentation
bin100001011001110…
…001110111101001
31110001111120111112
4201121301313221
52121430442433
6131335240105
716613241500
oct4131616751
91401446445
10560405993
11268375354
12137819035
138c144aa4
14545db837
15342eb348
hex21671de9

560405993 has 12 divisors (see below), whose sum is σ = 655678980. Its totient is φ = 477564192.

The previous prime is 560405977. The next prime is 560406001. The reversal of 560405993 is 399504065.

It can be written as a sum of positive squares in 2 ways, for example, as 449567209 + 110838784 = 21203^2 + 10528^2 .

It is not a de Polignac number, because 560405993 - 24 = 560405977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 560405993.

It is not an unprimeable number, because it can be changed into a prime (560405903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24578 + ... + 41531.

It is an arithmetic number, because the mean of its divisors is an integer number (54639915).

Almost surely, 2560405993 is an apocalyptic number.

It is an amenable number.

560405993 is a deficient number, since it is larger than the sum of its proper divisors (95272987).

560405993 is a wasteful number, since it uses less digits than its factorization.

560405993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66296 (or 66289 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 560405993 is about 23672.8957459792. The cubic root of 560405993 is about 824.4562038656.

The spelling of 560405993 in words is "five hundred sixty million, four hundred five thousand, nine hundred ninety-three".

Divisors: 1 7 49 173 1211 8477 66109 462763 3239341 11436857 80057999 560405993