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30683219 = 723190579
BaseRepresentation
bin111010100001…
…1000001010011
32010201212110112
41311003001103
530323330334
63013351535
7521542310
oct165030123
963655415
1030683219
1116357836
12a3385ab
136483c68
144109d07
152a614ce
hex1d43053

30683219 has 8 divisors (see below), whose sum is σ = 36591360. Its totient is φ = 25156296.

The previous prime is 30683207. The next prime is 30683221. The reversal of 30683219 is 91238603.

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

It is not a de Polignac number, because 30683219 - 24 = 30683203 is a prime.

It is a super-2 number, since 2×306832192 = 1882919856403922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30683269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95129 + ... + 95450.

It is an arithmetic number, because the mean of its divisors is an integer number (4573920).

Almost surely, 230683219 is an apocalyptic number.

30683219 is a deficient number, since it is larger than the sum of its proper divisors (5908141).

30683219 is a wasteful number, since it uses less digits than its factorization.

30683219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190609.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 30683219 is about 5539.2435404124. The cubic root of 30683219 is about 313.0643676716.

The spelling of 30683219 in words is "thirty million, six hundred eighty-three thousand, two hundred nineteen".

Divisors: 1 7 23 161 190579 1334053 4383317 30683219