Search a number
-
+
830412225 = 32523690721
BaseRepresentation
bin110001011111110…
…001010111000001
32010212120022102100
4301133301113001
53200041142400
6214222341013
726402246616
oct6137612701
92125508370
10830412225
11396822aa5
121b212a769
131030706a6
147c40450d
154cd83100
hex317f15c1

830412225 has 18 divisors (see below), whose sum is σ = 1487360966. Its totient is φ = 442886400.

The previous prime is 830412199. The next prime is 830412227. The reversal of 830412225 is 522214038.

It can be written as a sum of positive squares in 3 ways, for example, as 125350416 + 705061809 = 11196^2 + 26553^2 .

It is not a de Polignac number, because 830412225 - 28 = 830411969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830412227) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1845136 + ... + 1845585.

Almost surely, 2830412225 is an apocalyptic number.

It is an amenable number.

830412225 is a deficient number, since it is larger than the sum of its proper divisors (656948741).

830412225 is a wasteful number, since it uses less digits than its factorization.

830412225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690737 (or 3690729 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 830412225 is about 28816.8739630099. The cubic root of 830412225 is about 939.9351943402.

The spelling of 830412225 in words is "eight hundred thirty million, four hundred twelve thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 3690721 11072163 18453605 33216489 55360815 92268025 166082445 276804075 830412225