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30222125 = 53415897
BaseRepresentation
bin111001101001…
…0011100101101
32002212102221222
41303102130231
530214102000
62555433125
7514612103
oct163223455
962772858
1030222125
111607236a
12a1557a5
13635211b
144029c73
1529bea85
hex1cd272d

30222125 has 16 divisors (see below), whose sum is σ = 38643696. Its totient is φ = 23584000.

The previous prime is 30222109. The next prime is 30222131. The reversal of 30222125 is 52122203.

It can be written as a sum of positive squares in 8 ways, for example, as 10738729 + 19483396 = 3277^2 + 4414^2 .

It is not a de Polignac number, because 30222125 - 24 = 30222109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2177 + ... + 8073.

It is an arithmetic number, because the mean of its divisors is an integer number (2415231).

Almost surely, 230222125 is an apocalyptic number.

It is an amenable number.

30222125 is a deficient number, since it is larger than the sum of its proper divisors (8421571).

30222125 is an equidigital number, since it uses as much as digits as its factorization.

30222125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5953 (or 5943 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 30222125 is about 5497.4653250384. The cubic root of 30222125 is about 311.4882478796.

Adding to 30222125 its reverse (52122203), we get a palindrome (82344328).

The spelling of 30222125 in words is "thirty million, two hundred twenty-two thousand, one hundred twenty-five".

Divisors: 1 5 25 41 125 205 1025 5125 5897 29485 147425 241777 737125 1208885 6044425 30222125