Search a number
-
+
807568 = 24172969
BaseRepresentation
bin11000101001010010000
31112000202221
43011022100
5201320233
625150424
76602266
oct3051220
91460687
10807568
11501813
1232b414
13223768
14170436
1510e42d
hexc5290

807568 has 20 divisors (see below), whose sum is σ = 1657260. Its totient is φ = 379904.

The previous prime is 807559. The next prime is 807571. The reversal of 807568 is 865708.

It can be written as a sum of positive squares in 2 ways, for example, as 242064 + 565504 = 492^2 + 752^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213 + ... + 1756.

It is an arithmetic number, because the mean of its divisors is an integer number (82863).

2807568 is an apocalyptic number.

It is an amenable number.

807568 is an abundant number, since it is smaller than the sum of its proper divisors (849692).

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

807568 is a wasteful number, since it uses less digits than its factorization.

807568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994 (or 2988 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 807568 is about 898.6478731962. The cubic root of 807568 is about 93.1235879551.

The spelling of 807568 in words is "eight hundred seven thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 16 17 34 68 136 272 2969 5938 11876 23752 47504 50473 100946 201892 403784 807568