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222022230 = 2357400741
BaseRepresentation
bin11010011101111…
…00101001010110
3120110202220020120
431032330221112
5423314202410
634010412410
75334105063
oct1516745126
9513686216
10222022230
11104364651
1262431106
1336cc8001
14216b5c6a
1514759570
hexd3bca56

222022230 has 16 divisors (see below), whose sum is σ = 532853424. Its totient is φ = 59205920.

The previous prime is 222022211. The next prime is 222022259. The reversal of 222022230 is 32220222.

It is a super-2 number, since 2×2220222302 = 98587741228345800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3700341 + ... + 3700400.

It is an arithmetic number, because the mean of its divisors is an integer number (33303339).

Almost surely, 2222022230 is an apocalyptic number.

222022230 is an abundant number, since it is smaller than the sum of its proper divisors (310831194).

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

222022230 is a wasteful number, since it uses less digits than its factorization.

222022230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7400751.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 222022230 is about 14900.4103970327. The cubic root of 222022230 is about 605.5251047480.

Adding to 222022230 its reverse (32220222), we get a palindrome (254242452).

The spelling of 222022230 in words is "two hundred twenty-two million, twenty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 7400741 14801482 22202223 37003705 44404446 74007410 111011115 222022230