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830 = 2583
BaseRepresentation
bin1100111110
31010202
430332
511310
63502
72264
oct1476
91122
10830
11695
12592
134bb
14434
153a5
hex33e

830 has 8 divisors (see below), whose sum is σ = 1512. Its totient is φ = 328.

The previous prime is 829. The next prime is 839. The reversal of 830 is 38.

Adding to 830 its sum of digits (11), we get a square (841 = 292).

Adding to 830 its reverse (38), we get a palindrome (868).

830 is nontrivially palindromic in base 14.

830 is an esthetic number in base 14, because in such base its adjacent digits differ by 1.

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

It is an alternating number because its digits alternate between even and odd.

830 is an undulating number in base 14.

It is a plaindrome in base 9, base 13 and base 16.

It is a nialpdrome in base 10.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32 + ... + 51.

It is an arithmetic number, because the mean of its divisors is an integer number (189).

830 is a deficient number, since it is larger than the sum of its proper divisors (682).

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

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

The sum of its prime factors is 90.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 830 is about 28.8097205818. The cubic root of 830 is about 9.3977963750.

The spelling of 830 in words is "eight hundred thirty", and thus it is an aban number and an oban number.

Divisors: 1 2 5 10 83 166 415 830