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561130 = 2556113
BaseRepresentation
bin10001000111111101010
31001111201121
42020333222
5120424010
620005454
74524643
oct2107752
91044647
10561130
11353649
1223088a
1316853b
141086ca
15b13da
hex88fea

561130 has 8 divisors (see below), whose sum is σ = 1010052. Its totient is φ = 224448.

The previous prime is 561109. The next prime is 561161. The reversal of 561130 is 31165.

It can be written as a sum of positive squares in 2 ways, for example, as 450241 + 110889 = 671^2 + 333^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 28047 + ... + 28066.

2561130 is an apocalyptic number.

561130 is a deficient number, since it is larger than the sum of its proper divisors (448922).

561130 is a wasteful number, since it uses less digits than its factorization.

561130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56120.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 561130 is about 749.0861098699. The cubic root of 561130 is about 82.4811098470.

Adding to 561130 its reverse (31165), we get a palindrome (592295).

The spelling of 561130 in words is "five hundred sixty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 56113 112226 280565 561130