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813587342 = 21801225871
BaseRepresentation
bin110000011111100…
…101101110001110
32002200220112000112
4300133211232032
53131234243332
6212422000022
726106243521
oct6037455616
92080815015
10813587342
11388281237
121a8576012
13cc72c539
147a0a4bb8
154b65cdb2
hex307e5b8e

813587342 has 8 divisors (see below), whose sum is σ = 1221064032. Its totient is φ = 406566000.

The previous prime is 813587329. The next prime is 813587347. The reversal of 813587342 is 243785318.

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

It is a self number, because there is not a number n which added to its sum of digits gives 813587342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813587347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109334 + ... + 116537.

It is an arithmetic number, because the mean of its divisors is an integer number (152633004).

Almost surely, 2813587342 is an apocalyptic number.

813587342 is a deficient number, since it is larger than the sum of its proper divisors (407476690).

813587342 is a wasteful number, since it uses less digits than its factorization.

813587342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227674.

The product of its digits is 161280, while the sum is 41.

The square root of 813587342 is about 28523.4524908890. The cubic root of 813587342 is about 933.5438617204.

The spelling of 813587342 in words is "eight hundred thirteen million, five hundred eighty-seven thousand, three hundred forty-two".

Divisors: 1 2 1801 3602 225871 451742 406793671 813587342