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222213423 = 3611214281
BaseRepresentation
bin11010011111010…
…11010100101111
3120111010121111210
431033223110233
5423341312143
634014445503
75335532355
oct1517532457
9514117453
10222213423
11104485263
1262503893
1337064043
14217257d5
1514796033
hexd3eb52f

222213423 has 8 divisors (see below), whose sum is σ = 301141936. Its totient is φ = 145713600.

The previous prime is 222213413. The next prime is 222213437. The reversal of 222213423 is 324312222.

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

It is not a de Polignac number, because 222213423 - 26 = 222213359 is a prime.

It is a super-2 number, since 2×2222134232 = 98757610722753858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222213423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222213403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606958 + ... + 607323.

It is an arithmetic number, because the mean of its divisors is an integer number (37642742).

Almost surely, 2222213423 is an apocalyptic number.

222213423 is a deficient number, since it is larger than the sum of its proper divisors (78928513).

222213423 is a wasteful number, since it uses less digits than its factorization.

222213423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214345.

The product of its digits is 1152, while the sum is 21.

The square root of 222213423 is about 14906.8247121914. The cubic root of 222213423 is about 605.6988695479.

Adding to 222213423 its reverse (324312222), we get a palindrome (546525645).

The spelling of 222213423 in words is "two hundred twenty-two million, two hundred thirteen thousand, four hundred twenty-three".

Divisors: 1 3 61 183 1214281 3642843 74071141 222213423