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10809393 = 37514733
BaseRepresentation
bin101001001111…
…000000110001
3202100011200220
4221033000301
510231400033
61023403253
7160610160
oct51170061
922304626
1010809393
116113291
123753529
1323160ba
1416153d7
15e37bb3
hexa4f031

10809393 has 8 divisors (see below), whose sum is σ = 16471488. Its totient is φ = 6176784.

The previous prime is 10809391. The next prime is 10809401. The reversal of 10809393 is 39390801.

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

It is not a de Polignac number, because 10809393 - 21 = 10809391 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10809391) 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, 257346 + ... + 257387.

It is an arithmetic number, because the mean of its divisors is an integer number (2058936).

Almost surely, 210809393 is an apocalyptic number.

It is an amenable number.

10809393 is a deficient number, since it is larger than the sum of its proper divisors (5662095).

10809393 is an equidigital number, since it uses as much as digits as its factorization.

10809393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514743.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 10809393 is about 3287.7641338758. The cubic root of 10809393 is about 221.1059530309.

The spelling of 10809393 in words is "ten million, eight hundred nine thousand, three hundred ninety-three".

Divisors: 1 3 7 21 514733 1544199 3603131 10809393