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30045122 = 279190159
BaseRepresentation
bin111001010011…
…1001111000010
32002112110011022
41302213033002
530142420442
62551545442
7513244052
oct162471702
962473138
1030045122
1115a61388
12a08b282
1362bc6a3
143dc1562
1529873d2
hex1ca73c2

30045122 has 8 divisors (see below), whose sum is σ = 45638400. Its totient is φ = 14832324.

The previous prime is 30045109. The next prime is 30045133. The reversal of 30045122 is 22154003.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30045122.

It is an unprimeable number.

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, 94922 + ... + 95237.

It is an arithmetic number, because the mean of its divisors is an integer number (5704800).

Almost surely, 230045122 is an apocalyptic number.

30045122 is a deficient number, since it is larger than the sum of its proper divisors (15593278).

30045122 is a wasteful number, since it uses less digits than its factorization.

30045122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190240.

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

The square root of 30045122 is about 5481.3430835882. The cubic root of 30045122 is about 310.8789553859.

Adding to 30045122 its reverse (22154003), we get a palindrome (52199125).

The spelling of 30045122 in words is "thirty million, forty-five thousand, one hundred twenty-two".

Divisors: 1 2 79 158 190159 380318 15022561 30045122