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220230013 = 316769539
BaseRepresentation
bin11010010000001…
…11000101111101
3120100101211210011
431020013011331
5422334330023
633504143221
75312632003
oct1510070575
9510354704
10220230013
11103350083
1261907b11
133681b323
142136aa73
151450350d
hexd20717d

220230013 has 4 divisors (see below), whose sum is σ = 220302720. Its totient is φ = 220157308.

The previous prime is 220230011. The next prime is 220230029. The reversal of 220230013 is 310032022.

It is a happy number.

220230013 is digitally balanced in base 2, 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 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 220230013 - 21 = 220230011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220229975 and 220230002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220230011) 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, 31603 + ... + 37936.

It is an arithmetic number, because the mean of its divisors is an integer number (55075680).

Almost surely, 2220230013 is an apocalyptic number.

It is an amenable number.

220230013 is a deficient number, since it is larger than the sum of its proper divisors (72707).

220230013 is an equidigital number, since it uses as much as digits as its factorization.

220230013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72706.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 220230013 is about 14840.1486852390. The cubic root of 220230013 is about 603.8913860002.

Adding to 220230013 its reverse (310032022), we get a palindrome (530262035).

The spelling of 220230013 in words is "two hundred twenty million, two hundred thirty thousand, thirteen".

Divisors: 1 3167 69539 220230013