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30222130 = 2519915187
BaseRepresentation
bin111001101001…
…0011100110010
32002212102222011
41303102130302
530214102010
62555433134
7514612111
oct163223462
962772864
1030222130
1116072374
12a1557aa
136352123
144029c78
1529bea8a
hex1cd2732

30222130 has 16 divisors (see below), whose sum is σ = 54676800. Its totient is φ = 12027312.

The previous prime is 30222109. The next prime is 30222131. The reversal of 30222130 is 3122203.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30222130.

It is not an unprimeable number, because it can be changed into a prime (30222131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5604 + ... + 9583.

It is an arithmetic number, because the mean of its divisors is an integer number (3417300).

Almost surely, 230222130 is an apocalyptic number.

30222130 is a deficient number, since it is larger than the sum of its proper divisors (24454670).

30222130 is a wasteful number, since it uses less digits than its factorization.

30222130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15393.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30222130 is about 5497.4657797934. The cubic root of 30222130 is about 311.4882650573.

Adding to 30222130 its reverse (3122203), we get a palindrome (33344333).

The spelling of 30222130 in words is "thirty million, two hundred twenty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 199 398 995 1990 15187 30374 75935 151870 3022213 6044426 15111065 30222130