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52275985 = 54724733
BaseRepresentation
bin1100011101101…
…0101100010001
310122100220011121
43013122230101
5101340312420
65104242241
71203224056
oct307325421
9118326147
1052275985
11275657a3
1215610381
13aaa4348
146d2b02d
1548c92aa
hex31dab11

52275985 has 12 divisors (see below), whose sum is σ = 64107828. Its totient is φ = 40922336.

The previous prime is 52275961. The next prime is 52275997. The reversal of 52275985 is 58957225.

52275985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13786369 + 38489616 = 3713^2 + 6204^2 .

It is not a de Polignac number, because 52275985 - 213 = 52267793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8679 + ... + 13411.

It is an arithmetic number, because the mean of its divisors is an integer number (5342319).

Almost surely, 252275985 is an apocalyptic number.

It is an amenable number.

52275985 is a deficient number, since it is larger than the sum of its proper divisors (11831843).

52275985 is an equidigital number, since it uses as much as digits as its factorization.

52275985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832 (or 4785 counting only the distinct ones).

The product of its digits is 252000, while the sum is 43.

The square root of 52275985 is about 7230.2133440169. The cubic root of 52275985 is about 373.9102823679.

The spelling of 52275985 in words is "fifty-two million, two hundred seventy-five thousand, nine hundred eighty-five".

Divisors: 1 5 47 235 2209 4733 11045 23665 222451 1112255 10455197 52275985