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30245199 = 310081733
BaseRepresentation
bin111001101100…
…0000101001111
32002220121121120
41303120011033
530220321244
63000132023
7515036265
oct163300517
962817546
1030245199
1116088736
12a167013
13635c78a
144034435
1529c6819
hex1cd814f

30245199 has 4 divisors (see below), whose sum is σ = 40326936. Its totient is φ = 20163464.

The previous prime is 30245191. The next prime is 30245233. The reversal of 30245199 is 99154203.

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

It is a cyclic number.

It is not a de Polignac number, because 30245199 - 23 = 30245191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30245191) 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, 5040864 + ... + 5040869.

It is an arithmetic number, because the mean of its divisors is an integer number (10081734).

Almost surely, 230245199 is an apocalyptic number.

30245199 is a deficient number, since it is larger than the sum of its proper divisors (10081737).

30245199 is a wasteful number, since it uses less digits than its factorization.

30245199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081736.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 30245199 is about 5499.5635281357. The cubic root of 30245199 is about 311.5674994377.

The spelling of 30245199 in words is "thirty million, two hundred forty-five thousand, one hundred ninety-nine".

Divisors: 1 3 10081733 30245199