[go: up one dir, main page]

Search a number
-
+
13405323 = 34468441
BaseRepresentation
bin110011001000…
…110010001011
3221020001122110
4303020302023
511412432243
61155153403
7221641401
oct63106213
927201573
1013405323
117626688
1245a5863
132a14859
141acd471
15129be33
hexcc8c8b

13405323 has 4 divisors (see below), whose sum is σ = 17873768. Its totient is φ = 8936880.

The previous prime is 13405309. The next prime is 13405349. The reversal of 13405323 is 32350431.

13405323 is digitally balanced in base 3, 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.

It is not a de Polignac number, because 13405323 - 24 = 13405307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13405323.

It is not an unprimeable number, because it can be changed into a prime (13405363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2234218 + ... + 2234223.

It is an arithmetic number, because the mean of its divisors is an integer number (4468442).

Almost surely, 213405323 is an apocalyptic number.

13405323 is a deficient number, since it is larger than the sum of its proper divisors (4468445).

13405323 is an equidigital number, since it uses as much as digits as its factorization.

13405323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4468444.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 13405323 is about 3661.3280377481. The cubic root of 13405323 is about 237.5522204654.

Adding to 13405323 its reverse (32350431), we get a palindrome (45755754).

The spelling of 13405323 in words is "thirteen million, four hundred five thousand, three hundred twenty-three".

Divisors: 1 3 4468441 13405323