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11307013 = 29389897
BaseRepresentation
bin101011001000…
…100000000101
3210021110022021
4223020200011
510343311023
61042203141
7165052024
oct53104005
923243267
1011307013
116423143
1239534b1
13245b753
1417048bb
15ed535d
hexac8805

11307013 has 4 divisors (see below), whose sum is σ = 11696940. Its totient is φ = 10917088.

The previous prime is 11306993. The next prime is 11307019. The reversal of 11307013 is 31070311.

It is a happy number.

11307013 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, and also an emirpimes, since its reverse is a distinct semiprime: 31070311 = 49036337.

It can be written as a sum of positive squares in 2 ways, for example, as 6140484 + 5166529 = 2478^2 + 2273^2 .

It is a cyclic number.

It is not a de Polignac number, because 11307013 - 221 = 9209861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11307019) 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, 194920 + ... + 194977.

It is an arithmetic number, because the mean of its divisors is an integer number (2924235).

Almost surely, 211307013 is an apocalyptic number.

It is an amenable number.

11307013 is a deficient number, since it is larger than the sum of its proper divisors (389927).

11307013 is an equidigital number, since it uses as much as digits as its factorization.

11307013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389926.

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 11307013 is about 3362.5902218379. The cubic root of 11307013 is about 224.4481157474.

Adding to 11307013 its reverse (31070311), we get a palindrome (42377324).

The spelling of 11307013 in words is "eleven million, three hundred seven thousand, thirteen".

Divisors: 1 29 389897 11307013