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222220033 = 731745719
BaseRepresentation
bin11010011111011…
…00111100000001
3120111010221120121
431033230330001
5423342020113
634014540241
75335560550
oct1517547401
9514127517
10222220033
1110448a222
1262507681
1337067059
1421727d97
1514797e8d
hexd3ecf01

222220033 has 4 divisors (see below), whose sum is σ = 253965760. Its totient is φ = 190474308.

The previous prime is 222220027. The next prime is 222220051. The reversal of 222220033 is 330022222.

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, and also an emirpimes, since its reverse is a distinct semiprime: 330022222 = 2165011111.

It is a cyclic number.

It is not a de Polignac number, because 222220033 - 225 = 188665601 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222219989 and 222220016.

It is not an unprimeable number, because it can be changed into a prime (222220013) 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, 15872853 + ... + 15872866.

It is an arithmetic number, because the mean of its divisors is an integer number (63491440).

Almost surely, 2222220033 is an apocalyptic number.

It is an amenable number.

222220033 is a deficient number, since it is larger than the sum of its proper divisors (31745727).

222220033 is an equidigital number, since it uses as much as digits as its factorization.

222220033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31745726.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 222220033 is about 14907.0464210722. The cubic root of 222220033 is about 605.7048752305.

Adding to 222220033 its reverse (330022222), we get a palindrome (552242255).

The spelling of 222220033 in words is "two hundred twenty-two million, two hundred twenty thousand, thirty-three".

Divisors: 1 7 31745719 222220033