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561107 = 4313049
BaseRepresentation
bin10001000111111010011
31001111200202
42020333103
5120423412
620005415
74524611
oct2107723
91044622
10561107
11353628
1223086b
13168521
141086b1
15b13c2
hex88fd3

561107 has 4 divisors (see below), whose sum is σ = 574200. Its totient is φ = 548016.

The previous prime is 561103. The next prime is 561109. The reversal of 561107 is 701165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 561107 - 22 = 561103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561101) 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 3 ways as a sum of consecutive naturals, for example, 6482 + ... + 6567.

It is an arithmetic number, because the mean of its divisors is an integer number (143550).

2561107 is an apocalyptic number.

561107 is a deficient number, since it is larger than the sum of its proper divisors (13093).

561107 is a wasteful number, since it uses less digits than its factorization.

561107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13092.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 561107 is about 749.0707576725. The cubic root of 561107 is about 82.4799829000.

The spelling of 561107 in words is "five hundred sixty-one thousand, one hundred seven".

Divisors: 1 43 13049 561107