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30110249 = 132316173
BaseRepresentation
bin111001011011…
…1001000101001
32002122202111102
41302313020221
530202011444
62553211145
7513634661
oct162671051
962582442
1030110249
1115aa6304
12a100ab5
136313220
143ddb1a1
15299b84e
hex1cb7229

30110249 has 4 divisors (see below), whose sum is σ = 32426436. Its totient is φ = 27794064.

The previous prime is 30110239. The next prime is 30110251. The reversal of 30110249 is 94201103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18550249 + 11560000 = 4307^2 + 3400^2 .

It is a cyclic number.

It is not a de Polignac number, because 30110249 - 24 = 30110233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30110249.

It is not an unprimeable number, because it can be changed into a prime (30110209) 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 3 ways as a sum of consecutive naturals, for example, 1158074 + ... + 1158099.

It is an arithmetic number, because the mean of its divisors is an integer number (8106609).

Almost surely, 230110249 is an apocalyptic number.

It is an amenable number.

30110249 is a deficient number, since it is larger than the sum of its proper divisors (2316187).

30110249 is a wasteful number, since it uses less digits than its factorization.

30110249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316186.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 30110249 is about 5487.2806562085. The cubic root of 30110249 is about 311.1034178039.

The spelling of 30110249 in words is "thirty million, one hundred ten thousand, two hundred forty-nine".

Divisors: 1 13 2316173 30110249