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6820231 = 11739839
BaseRepresentation
bin11010000001000110000111
3110211111121011
4122001012013
53221221411
6402103051
7111654025
oct32010607
913744534
106820231
113939160
12234aa87
13154a452
14c97715
158eac21
hex681187

6820231 has 8 divisors (see below), whose sum is σ = 7459200. Its totient is φ = 6184440.

The previous prime is 6820211. The next prime is 6820241. The reversal of 6820231 is 1320286.

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

It is a cyclic number.

It is not a de Polignac number, because 6820231 - 27 = 6820103 is a prime.

It is a super-2 number, since 2×68202312 = 93031101786722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7710 + ... + 8548.

It is an arithmetic number, because the mean of its divisors is an integer number (932400).

Almost surely, 26820231 is an apocalyptic number.

6820231 is a deficient number, since it is larger than the sum of its proper divisors (638969).

6820231 is a wasteful number, since it uses less digits than its factorization.

6820231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 6820231 is about 2611.5571983014. The cubic root of 6820231 is about 189.6413455709.

Subtracting from 6820231 its reverse (1320286), we obtain a palindrome (5499945).

The spelling of 6820231 in words is "six million, eight hundred twenty thousand, two hundred thirty-one".

Divisors: 1 11 739 839 8129 9229 620021 6820231