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20020222 = 258717053
BaseRepresentation
bin100110001011…
…1101111111110
31101200010120201
41030113233332
520111121342
61553034114
7332111665
oct114275776
941603521
1020020222
1110334542
12685593a
1341bc6b1
142931ddc
151b56db7
hex1317bfe

20020222 has 8 divisors (see below), whose sum is σ = 30083256. Its totient is φ = 9992472.

The previous prime is 20020207. The next prime is 20020223. The reversal of 20020222 is 22202002.

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

It is a junction number, because it is equal to n+sod(n) for n = 20020199 and 20020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7353 + ... + 9700.

It is an arithmetic number, because the mean of its divisors is an integer number (3760407).

Almost surely, 220020222 is an apocalyptic number.

20020222 is a deficient number, since it is larger than the sum of its proper divisors (10063034).

20020222 is a wasteful number, since it uses less digits than its factorization.

20020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17642.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 20020222 is about 4474.3962721243. The cubic root of 20020222 is about 271.5332157651.

Adding to 20020222 its reverse (22202002), we get a palindrome (42222224).

The spelling of 20020222 in words is "twenty million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 587 1174 17053 34106 10010111 20020222