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30120199 = 412692731
BaseRepresentation
bin111001011100…
…1100100000111
32002200021010221
41302321210013
530202321244
62553325211
7514005664
oct162714407
962607127
1030120199
111600282a
12a106807
136317905
144000a6b
15299e784
hex1cb9907

30120199 has 8 divisors (see below), whose sum is σ = 30980880. Its totient is φ = 29265600.

The previous prime is 30120197. The next prime is 30120203. The reversal of 30120199 is 99102103.

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

It is a cyclic number.

It is not a de Polignac number, because 30120199 - 21 = 30120197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120191) 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 7 ways as a sum of consecutive naturals, for example, 9664 + ... + 12394.

It is an arithmetic number, because the mean of its divisors is an integer number (3872610).

Almost surely, 230120199 is an apocalyptic number.

30120199 is a deficient number, since it is larger than the sum of its proper divisors (860681).

30120199 is a wasteful number, since it uses less digits than its factorization.

30120199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 30120199 is about 5488.1872234828. The cubic root of 30120199 is about 311.1376823063.

The spelling of 30120199 in words is "thirty million, one hundred twenty thousand, one hundred ninety-nine".

Divisors: 1 41 269 2731 11029 111971 734639 30120199