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56768237 = 65986143
BaseRepresentation
bin1101100010001…
…1011011101101
310221211010101022
43120203123231
5104013040422
65344423525
71256344031
oct330433355
9127733338
1056768237
112a0538a9
1217017ba5
13b9b7c96
14777a1c1
154eb5342
hex36236ed

56768237 has 4 divisors (see below), whose sum is σ = 56855040. Its totient is φ = 56681436.

The previous prime is 56768233. The next prime is 56768251. The reversal of 56768237 is 73286765.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73286765 = 514657353.

It is a cyclic number.

It is not a de Polignac number, because 56768237 - 22 = 56768233 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56768233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42413 + ... + 43730.

It is an arithmetic number, because the mean of its divisors is an integer number (14213760).

Almost surely, 256768237 is an apocalyptic number.

It is an amenable number.

56768237 is a deficient number, since it is larger than the sum of its proper divisors (86803).

56768237 is an equidigital number, since it uses as much as digits as its factorization.

56768237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86802.

The product of its digits is 423360, while the sum is 44.

The square root of 56768237 is about 7534.4699216335. The cubic root of 56768237 is about 384.3278021409.

The spelling of 56768237 in words is "fifty-six million, seven hundred sixty-eight thousand, two hundred thirty-seven".

Divisors: 1 659 86143 56768237