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28830683 = 74395783
BaseRepresentation
bin110110111111…
…0101111011011
32000020202021002
41231332233123
524340040213
62505535215
7500025320
oct155765733
960222232
1028830683
1115301a12
1297a450b
135c8599b
143b86b47
1527e7658
hex1b7ebdb

28830683 has 8 divisors (see below), whose sum is σ = 33715968. Its totient is φ = 24137064.

The previous prime is 28830671. The next prime is 28830701. The reversal of 28830683 is 38603882.

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

It is not a de Polignac number, because 28830683 - 28 = 28830427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28830643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47591 + ... + 48192.

It is an arithmetic number, because the mean of its divisors is an integer number (4214496).

Almost surely, 228830683 is an apocalyptic number.

28830683 is a deficient number, since it is larger than the sum of its proper divisors (4885285).

28830683 is an equidigital number, since it uses as much as digits as its factorization.

28830683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95833.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 28830683 is about 5369.4211047375. The cubic root of 28830683 is about 306.6325892873.

The spelling of 28830683 in words is "twenty-eight million, eight hundred thirty thousand, six hundred eighty-three".

Divisors: 1 7 43 301 95783 670481 4118669 28830683