Search a number
-
+
20013222 = 233335537
BaseRepresentation
bin100110001011…
…0000010100110
31101122202222110
41030112002212
520110410342
61552541450
7332052405
oct114260246
941582873
1020013222
111032a259
126851886
1341b9458
14292d63c
151b54c9c
hex13160a6

20013222 has 8 divisors (see below), whose sum is σ = 40026456. Its totient is φ = 6671072.

The previous prime is 20013221. The next prime is 20013223. The reversal of 20013222 is 22231002.

It is an interprime number because it is at equal distance from previous prime (20013221) and next prime (20013223).

It is a sphenic number, since it is the product of 3 distinct primes.

20013222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20013198 and 20013207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013221) 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, 1667763 + ... + 1667774.

It is an arithmetic number, because the mean of its divisors is an integer number (5003307).

Almost surely, 220013222 is an apocalyptic number.

20013222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20013222 is a wasteful number, since it uses less digits than its factorization.

20013222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335542.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20013222 is about 4473.6139753001. The cubic root of 20013222 is about 271.5015651989.

Adding to 20013222 its reverse (22231002), we get a palindrome (42244224).

The spelling of 20013222 in words is "twenty million, thirteen thousand, two hundred twenty-two".

Divisors: 1 2 3 6 3335537 6671074 10006611 20013222