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30223222 = 259256129
BaseRepresentation
bin111001101001…
…0101101110110
32002212111110121
41303102231312
530214120342
62555442154
7514615231
oct163225566
962774417
1030223222
1116073177
12a15635a
136352783
14402a418
1529c0067
hex1cd2b76

30223222 has 8 divisors (see below), whose sum is σ = 46103400. Its totient is φ = 14855424.

The previous prime is 30223211. The next prime is 30223261. The reversal of 30223222 is 22232203.

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

It is a super-2 number, since 2×302232222 = 1826886296122568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30223196 and 30223205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127947 + ... + 128182.

It is an arithmetic number, because the mean of its divisors is an integer number (5762925).

Almost surely, 230223222 is an apocalyptic number.

30223222 is a deficient number, since it is larger than the sum of its proper divisors (15880178).

30223222 is a wasteful number, since it uses less digits than its factorization.

30223222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256190.

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

The square root of 30223222 is about 5497.5650973863. The cubic root of 30223222 is about 311.4920166249.

Adding to 30223222 its reverse (22232203), we get a palindrome (52455425).

The spelling of 30223222 in words is "thirty million, two hundred twenty-three thousand, two hundred twenty-two".

Divisors: 1 2 59 118 256129 512258 15111611 30223222