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20344411 = 71286541
BaseRepresentation
bin100110110011…
…0111001011011
31102021121021201
41031212321123
520202010121
62004015031
7334632103
oct115467133
942247251
1020344411
111053606a
126991477
1342a4119
1429b8203
151bbce91
hex1366e5b

20344411 has 4 divisors (see below), whose sum is σ = 20631024. Its totient is φ = 20057800.

The previous prime is 20344403. The next prime is 20344417. The reversal of 20344411 is 11444302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20344411 - 23 = 20344403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20344417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143200 + ... + 143341.

It is an arithmetic number, because the mean of its divisors is an integer number (5157756).

Almost surely, 220344411 is an apocalyptic number.

20344411 is a deficient number, since it is larger than the sum of its proper divisors (286613).

20344411 is an equidigital number, since it uses as much as digits as its factorization.

20344411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286612.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20344411 is about 4510.4779125942. The cubic root of 20344411 is about 272.9910278060.

Adding to 20344411 its reverse (11444302), we get a palindrome (31788713).

The spelling of 20344411 in words is "twenty million, three hundred forty-four thousand, four hundred eleven".

Divisors: 1 71 286541 20344411