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56253413465 = 573821187721
BaseRepresentation
bin110100011000111101…
…101111100001011001
312101012101201111012222
4310120331233201121
51410201333212330
641501545513425
74031004060614
oct643075574131
9171171644188
1056253413465
1121947649157
12aa9b1a2875
1353c64a4a92
142a1906717b
1516e38880e5
hexd18f6f859

56253413465 has 16 divisors (see below), whose sum is σ = 68512522896. Its totient is φ = 44331955200.

The previous prime is 56253413459. The next prime is 56253413467. The reversal of 56253413465 is 56431435265.

It can be written as a sum of positive squares in 8 ways, for example, as 6093988096 + 50159425369 = 78064^2 + 223963^2 .

It is not a de Polignac number, because 56253413465 - 224 = 56236636249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56253413467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205805 + ... + 393525.

It is an arithmetic number, because the mean of its divisors is an integer number (4282032681).

Almost surely, 256253413465 is an apocalyptic number.

It is an amenable number.

56253413465 is a deficient number, since it is larger than the sum of its proper divisors (12259109431).

56253413465 is a wasteful number, since it uses less digits than its factorization.

56253413465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188620.

The product of its digits is 1296000, while the sum is 44.

The spelling of 56253413465 in words is "fifty-six billion, two hundred fifty-three million, four hundred thirteen thousand, four hundred sixty-five".

Divisors: 1 5 73 365 821 4105 59933 187721 299665 938605 13703633 68518165 154118941 770594705 11250682693 56253413465