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222012030 = 23571104231
BaseRepresentation
bin11010011101110…
…10001001111110
3120110202101020210
431032322021332
5423313341110
634010253250
75334033252
oct1516721176
9513671223
10222012030
11104357a19
1262427226
1336cc3486
14216b2262
1514756520
hexd3ba27e

222012030 has 32 divisors (see below), whose sum is σ = 540338688. Its totient is φ = 58368800.

The previous prime is 222012029. The next prime is 222012047. The reversal of 222012030 is 30210222.

It is a junction number, because it is equal to n+sod(n) for n = 222011997 and 222012015.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 49986 + ... + 54245.

It is an arithmetic number, because the mean of its divisors is an integer number (16885584).

Almost surely, 2222012030 is an apocalyptic number.

222012030 is an abundant number, since it is smaller than the sum of its proper divisors (318326658).

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

222012030 is a wasteful number, since it uses less digits than its factorization.

222012030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104312.

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

The square root of 222012030 is about 14900.0681206497. The cubic root of 222012030 is about 605.5158317267.

Adding to 222012030 its reverse (30210222), we get a palindrome (252222252).

The spelling of 222012030 in words is "two hundred twenty-two million, twelve thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 71 142 213 355 426 710 1065 2130 104231 208462 312693 521155 625386 1042310 1563465 3126930 7400401 14800802 22201203 37002005 44402406 74004010 111006015 222012030