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222022013 = 239653131
BaseRepresentation
bin11010011101111…
…00100101111101
3120110202212221112
431032330211331
5423314201023
634010411405
75334104333
oct1516744575
9513685845
10222022013
11104364474
1262430b65
1336cc7b95
14216b5b53
1514759478
hexd3bc97d

222022013 has 4 divisors (see below), whose sum is σ = 231675168. Its totient is φ = 212368860.

The previous prime is 222022001. The next prime is 222022019. The reversal of 222022013 is 310220222.

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 222022013 - 24 = 222021997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222022019) 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, 4826543 + ... + 4826588.

It is an arithmetic number, because the mean of its divisors is an integer number (57918792).

Almost surely, 2222022013 is an apocalyptic number.

222022013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

222022013 is a deficient number, since it is larger than the sum of its proper divisors (9653155).

222022013 is an equidigital number, since it uses as much as digits as its factorization.

222022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9653154.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 222022013 is about 14900.4031153523. The cubic root of 222022013 is about 605.5249074720.

Adding to 222022013 its reverse (310220222), we get a palindrome (532242235).

The spelling of 222022013 in words is "two hundred twenty-two million, twenty-two thousand, thirteen".

Divisors: 1 23 9653131 222022013