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4820513 = 31315401
BaseRepresentation
bin10010011000111000100001
3100001220111112
4102120320201
52213224023
6251153105
755654655
oct22307041
910056445
104820513
1127a27a5
121745795
13cca199
148d6a65
15653478
hex498e21

4820513 has 4 divisors (see below), whose sum is σ = 4836228. Its totient is φ = 4804800.

The previous prime is 4820489. The next prime is 4820533. The reversal of 4820513 is 3150284.

4820513 = 15522 + 15532.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2408704 + 2411809 = 1552^2 + 1553^2 .

It is a cyclic number.

It is not a de Polignac number, because 4820513 - 212 = 4816417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4820533) 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, 7388 + ... + 8013.

It is an arithmetic number, because the mean of its divisors is an integer number (1209057).

Almost surely, 24820513 is an apocalyptic number.

4820513 is the 1553-rd centered square number.

It is an amenable number.

4820513 is a deficient number, since it is larger than the sum of its proper divisors (15715).

4820513 is a wasteful number, since it uses less digits than its factorization.

4820513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15714.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 4820513 is about 2195.5666694501. The cubic root of 4820513 is about 168.9264878745.

Adding to 4820513 its reverse (3150284), we get a palindrome (7970797).

The spelling of 4820513 in words is "four million, eight hundred twenty thousand, five hundred thirteen".

Divisors: 1 313 15401 4820513