Search a number
-
+
561008 = 2475009
BaseRepresentation
bin10001000111101110000
31001111120002
42020331300
5120423013
620005132
74524410
oct2107560
91044502
10561008
11353548
122307a8
13168476
14108640
15b1358
hex88f70

561008 has 20 divisors (see below), whose sum is σ = 1242480. Its totient is φ = 240384.

The previous prime is 560977. The next prime is 561019. The reversal of 561008 is 800165.

It is a congruent number.

It is an unprimeable number.

561008 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393 + ... + 2616.

It is an arithmetic number, because the mean of its divisors is an integer number (62124).

2561008 is an apocalyptic number.

It is an amenable number.

561008 is an abundant number, since it is smaller than the sum of its proper divisors (681472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561008 is a wasteful number, since it uses less digits than its factorization.

561008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024 (or 5018 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 561008 is about 749.0046728826. The cubic root of 561008 is about 82.4751317762.

The spelling of 561008 in words is "five hundred sixty-one thousand, eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 5009 10018 20036 35063 40072 70126 80144 140252 280504 561008