Search a number
-
+
30227112 = 2332419821
BaseRepresentation
bin111001101001…
…1101010101000
32002212200210200
41303103222220
530214231422
62555512200
7514632456
oct163235250
962780720
1030227112
1116076093
12a158660
136354486
14402b9d6
1529c12ac
hex1cd3aa8

30227112 has 24 divisors (see below), whose sum is σ = 81865290. Its totient is φ = 10075680.

The previous prime is 30227111. The next prime is 30227149. The reversal of 30227112 is 21172203.

It can be written as a sum of positive squares in only one way, i.e., 26563716 + 3663396 = 5154^2 + 1914^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30227111) 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 5 ways as a sum of consecutive naturals, for example, 209839 + ... + 209982.

Almost surely, 230227112 is an apocalyptic number.

It is an amenable number.

30227112 is an abundant number, since it is smaller than the sum of its proper divisors (51638178).

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

30227112 is a wasteful number, since it uses less digits than its factorization.

30227112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419833 (or 419826 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 30227112 is about 5497.9188789941. The cubic root of 30227112 is about 311.5053799912.

Adding to 30227112 its reverse (21172203), we get a palindrome (51399315).

The spelling of 30227112 in words is "thirty million, two hundred twenty-seven thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 419821 839642 1259463 1679284 2518926 3358568 3778389 5037852 7556778 10075704 15113556 30227112