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575664049 = 239932
BaseRepresentation
bin100010010011111…
…110111110110001
31111010012202121201
4202103332332301
52134332222144
6133042251201
720160030562
oct4223767661
91433182551
10575664049
11275a46a14
12140956b01
1392357a1c
1456650169
15358121d4
hex224fefb1

575664049 has 3 divisors (see below), whose sum is σ = 575688043. Its totient is φ = 575640056.

The previous prime is 575664043. The next prime is 575664053. The reversal of 575664049 is 940466575.

The square root of 575664049 is 23993.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1199025 + 574465024 = 1095^2 + 23968^2 .

It is not a de Polignac number, because 575664049 - 23 = 575664041 is a prime.

It is a super-2 number, since 2×5756640492 = 662778194622148802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (575664041) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11997 + ... + 35989.

Almost surely, 2575664049 is an apocalyptic number.

575664049 is the 23993-rd square number.

575664049 is the 11997-th centered octagonal number.

It is an amenable number.

575664049 is a deficient number, since it is larger than the sum of its proper divisors (23994).

575664049 is an frugal number, since it uses more digits than its factorization.

575664049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47986 (or 23993 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The cubic root of 575664049 is about 831.8717370579.

The spelling of 575664049 in words is "five hundred seventy-five million, six hundred sixty-four thousand, forty-nine".

Divisors: 1 23993 575664049