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52983569 = 8926689
BaseRepresentation
bin1100101000011…
…1011100010001
310200200211210102
43022013130101
5102030433234
65131342145
71212232022
oct312073421
9120624712
1052983569
11279a9381
12158b1955
13ac91432
147072c49
1549b8c7e
hex3287711

52983569 has 6 divisors (see below), whose sum is σ = 53593590. Its totient is φ = 52380416.

The previous prime is 52983547. The next prime is 52983583. The reversal of 52983569 is 96538925.

It can be written as a sum of positive squares in 3 ways, for example, as 3097600 + 49885969 = 1760^2 + 7063^2 .

It is a de Polignac number, because none of the positive numbers 2k-52983569 is a prime.

It is a super-2 number, since 2×529835692 = 5614517167955522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52983269) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4577 + ... + 11265.

It is an arithmetic number, because the mean of its divisors is an integer number (8932265).

Almost surely, 252983569 is an apocalyptic number.

It is an amenable number.

52983569 is a deficient number, since it is larger than the sum of its proper divisors (610021).

52983569 is an frugal number, since it uses more digits than its factorization.

52983569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6867 (or 6778 counting only the distinct ones).

The product of its digits is 583200, while the sum is 47.

The square root of 52983569 is about 7278.9813160909. The cubic root of 52983569 is about 375.5897540948.

The spelling of 52983569 in words is "fifty-two million, nine hundred eighty-three thousand, five hundred sixty-nine".

Divisors: 1 89 6689 7921 595321 52983569