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813068 = 22317983
BaseRepresentation
bin11000110100000001100
31112022022122
43012200030
5202004233
625232112
76624314
oct3064014
91468278
10813068
11505963
12332638
13226109
14172444
15110d98
hexc680c

813068 has 24 divisors (see below), whose sum is σ = 1505280. Its totient is φ = 383760.

The previous prime is 813061. The next prime is 813083. The reversal of 813068 is 860318.

It is a super-2 number, since 2×8130682 = 1322159145248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813061) by changing a digit.

813068 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 9755 + ... + 9837.

It is an arithmetic number, because the mean of its divisors is an integer number (62720).

2813068 is an apocalyptic number.

It is an amenable number.

813068 is a deficient number, since it is larger than the sum of its proper divisors (692212).

813068 is a wasteful number, since it uses less digits than its factorization.

813068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 813068 is about 901.7028335322. The cubic root of 813068 is about 93.3345181255.

The spelling of 813068 in words is "eight hundred thirteen thousand, sixty-eight".

Divisors: 1 2 4 31 62 79 83 124 158 166 316 332 2449 2573 4898 5146 6557 9796 10292 13114 26228 203267 406534 813068