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220113013 = 239570131
BaseRepresentation
bin11010001111010…
…10100001110101
3120100011220021211
431013222201311
5422322104023
633501441421
75311633621
oct1507524165
9510156254
10220113013
1110328018a
1261870271
13367a9cb3
142133a181
15144cda0d
hexd1ea875

220113013 has 4 divisors (see below), whose sum is σ = 229683168. Its totient is φ = 210542860.

The previous prime is 220112983. The next prime is 220113029. The reversal of 220113013 is 310311022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220113013 - 213 = 220104821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220112984 and 220113002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220113083) 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, 4785043 + ... + 4785088.

It is an arithmetic number, because the mean of its divisors is an integer number (57420792).

Almost surely, 2220113013 is an apocalyptic number.

220113013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

220113013 is a deficient number, since it is larger than the sum of its proper divisors (9570155).

220113013 is an equidigital number, since it uses as much as digits as its factorization.

220113013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9570154.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 220113013 is about 14836.2061525176. The cubic root of 220113013 is about 603.7844253925.

Adding to 220113013 its reverse (310311022), we get a palindrome (530424035).

The spelling of 220113013 in words is "two hundred twenty million, one hundred thirteen thousand, thirteen".

Divisors: 1 23 9570131 220113013