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56283997 = 72113863
BaseRepresentation
bin1101011010110…
…1001101011101
310220220112010111
43112231031131
5103402041442
65330210021
71252256200
oct326551535
9126815114
1056283997
1129853000
1216a23911
13b878753
147691937
154e1bb17
hex35ad35d

56283997 has 24 divisors (see below), whose sum is σ = 72099072. Its totient is φ = 43806840.

The previous prime is 56283977. The next prime is 56284001. The reversal of 56283997 is 79938265.

It is not a de Polignac number, because 56283997 - 27 = 56283869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

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 56283997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56283917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64788 + ... + 65650.

It is an arithmetic number, because the mean of its divisors is an integer number (3004128).

Almost surely, 256283997 is an apocalyptic number.

It is an amenable number.

56283997 is a deficient number, since it is larger than the sum of its proper divisors (15815075).

56283997 is an equidigital number, since it uses as much as digits as its factorization.

56283997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910 (or 881 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 56283997 is about 7502.2661243120. The cubic root of 56283997 is about 383.2318924189.

The spelling of 56283997 in words is "fifty-six million, two hundred eighty-three thousand, nine hundred ninety-seven".

Divisors: 1 7 11 49 77 121 539 847 863 1331 5929 6041 9317 9493 42287 65219 66451 104423 465157 730961 1148653 5116727 8040571 56283997