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52545593 = 232978779
BaseRepresentation
bin1100100001110…
…0100000111001
310122212121000002
43020130200321
5101422424333
65114122345
71205426102
oct310344071
9118777002
1052545593
112772a311
12157203b5
13ab69c89
146d9b3a9
15492e0e8
hex321c839

52545593 has 8 divisors (see below), whose sum is σ = 56721600. Its totient is φ = 48527248.

The previous prime is 52545551. The next prime is 52545599. The reversal of 52545593 is 39554525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52545593 - 214 = 52529209 is a prime.

It is a super-2 number, since 2×525455932 = 5522078687443298, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52545599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38723 + ... + 40056.

It is an arithmetic number, because the mean of its divisors is an integer number (7090200).

Almost surely, 252545593 is an apocalyptic number.

It is an amenable number.

52545593 is a deficient number, since it is larger than the sum of its proper divisors (4176007).

52545593 is a wasteful number, since it uses less digits than its factorization.

52545593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78831.

The product of its digits is 135000, while the sum is 38.

The square root of 52545593 is about 7248.8339062224. The cubic root of 52545593 is about 374.5519816995.

The spelling of 52545593 in words is "fifty-two million, five hundred forty-five thousand, five hundred ninety-three".

Divisors: 1 23 29 667 78779 1811917 2284591 52545593