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56089 = 115099
BaseRepresentation
bin1101101100011001
32211221101
431230121
53243324
61111401
7322345
oct155431
984841
1056089
1139160
1228561
131c6b7
1416625
1511944
hexdb19

56089 has 4 divisors (see below), whose sum is σ = 61200. Its totient is φ = 50980.

The previous prime is 56087. The next prime is 56093. The reversal of 56089 is 98065.

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.

It is a cyclic number.

It is not a de Polignac number, because 56089 - 21 = 56087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56081) 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, 2539 + ... + 2560.

It is an arithmetic number, because the mean of its divisors is an integer number (15300).

256089 is an apocalyptic number.

It is an amenable number.

56089 is a deficient number, since it is larger than the sum of its proper divisors (5111).

56089 is a wasteful number, since it uses less digits than its factorization.

56089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 56089 is about 236.8311634899. The cubic root of 56089 is about 38.2788808891.

The spelling of 56089 in words is "fifty-six thousand, eighty-nine".

Divisors: 1 11 5099 56089