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8682809 = 31127919
BaseRepresentation
bin100001000111…
…110100111001
3121100010120112
4201013310321
54210322214
6510034105
7133542212
oct41076471
917303515
108682809
1149a0583
122aa8935
131a50175
141220409
15b67a3e
hex847d39

8682809 has 4 divisors (see below), whose sum is σ = 8711040. Its totient is φ = 8654580.

The previous prime is 8682763. The next prime is 8682841. The reversal of 8682809 is 9082868.

It is a happy number.

8682809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8682809 - 212 = 8678713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8682209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13649 + ... + 14270.

It is an arithmetic number, because the mean of its divisors is an integer number (2177760).

Almost surely, 28682809 is an apocalyptic number.

It is an amenable number.

8682809 is a deficient number, since it is larger than the sum of its proper divisors (28231).

8682809 is a wasteful number, since it uses less digits than its factorization.

8682809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28230.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 8682809 is about 2946.6606523317. The cubic root of 8682809 is about 205.5354552323.

The spelling of 8682809 in words is "eight million, six hundred eighty-two thousand, eight hundred nine".

Divisors: 1 311 27919 8682809