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52056239 = 99152529
BaseRepresentation
bin1100011010010…
…1000010101111
310121221201201212
43012211002233
5101311244424
65055425035
71201320314
oct306450257
9117851655
1052056239
1127425694
121552517b
13aa28311
146cb0d0b
15488410e
hex31a50af

52056239 has 4 divisors (see below), whose sum is σ = 52109760. Its totient is φ = 52002720.

The previous prime is 52056233. The next prime is 52056269. The reversal of 52056239 is 93265025.

52056239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52056239 - 216 = 51990703 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 (52056233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25274 + ... + 27255.

It is an arithmetic number, because the mean of its divisors is an integer number (13027440).

Almost surely, 252056239 is an apocalyptic number.

52056239 is a deficient number, since it is larger than the sum of its proper divisors (53521).

52056239 is an equidigital number, since it uses as much as digits as its factorization.

52056239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53520.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 52056239 is about 7215.0009702009. Note that the first 3 decimals coincide. The cubic root of 52056239 is about 373.3856266212.

The spelling of 52056239 in words is "fifty-two million, fifty-six thousand, two hundred thirty-nine".

Divisors: 1 991 52529 52056239