Search a number
-
+
830430 = 23259227
BaseRepresentation
bin11001010101111011110
31120012010200
43022233132
5203033210
625444330
710026036
oct3125736
91505120
10830430
11517a07
123406a6
13230ca3
141788c6
151160c0
hexcabde

830430 has 24 divisors (see below), whose sum is σ = 2159352. Its totient is φ = 221424.

The previous prime is 830419. The next prime is 830441. The reversal of 830430 is 34038.

It is an interprime number because it is at equal distance from previous prime (830419) and next prime (830441).

It is a super-2 number, since 2×8304302 = 1379227969800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 830430.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4524 + ... + 4703.

It is an arithmetic number, because the mean of its divisors is an integer number (89973).

2830430 is an apocalyptic number.

830430 is an abundant number, since it is smaller than the sum of its proper divisors (1328922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

830430 is a wasteful number, since it uses less digits than its factorization.

830430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9240 (or 9237 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 830430 is about 911.2793205159. The cubic root of 830430 is about 93.9941900740.

Adding to 830430 its reverse (34038), we get a palindrome (864468).

The spelling of 830430 in words is "eight hundred thirty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 9227 18454 27681 46135 55362 83043 92270 138405 166086 276810 415215 830430