Search a number
-
+
830728235 = 5315359537
BaseRepresentation
bin110001100000111…
…110100000101011
32010220011100220102
4301200332200223
53200131300420
6214233220015
726405034131
oct6140764053
92126140812
10830728235
11396a19467
121b226160b
1310315148c
147c487751
154cde6a75
hex3183e82b

830728235 has 8 divisors (see below), whose sum is σ = 1029031296. Its totient is φ = 643144320.

The previous prime is 830728231. The next prime is 830728259. The reversal of 830728235 is 532827038.

830728235 is nontrivially palindromic in base 3.

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

It is not a de Polignac number, because 830728235 - 22 = 830728231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830728231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2679614 + ... + 2679923.

It is an arithmetic number, because the mean of its divisors is an integer number (128628912).

Almost surely, 2830728235 is an apocalyptic number.

830728235 is a deficient number, since it is larger than the sum of its proper divisors (198303061).

830728235 is a wasteful number, since it uses less digits than its factorization.

830728235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5359573.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 830728235 is about 28822.3565136510. The cubic root of 830728235 is about 940.0544087263.

The spelling of 830728235 in words is "eight hundred thirty million, seven hundred twenty-eight thousand, two hundred thirty-five".

Divisors: 1 5 31 155 5359537 26797685 166145647 830728235