Search a number
-
+
110830981 is a prime number
BaseRepresentation
bin1101001101100…
…10010110000101
321201112210112011
412212302112011
5211333042411
614555254221
72514022252
oct646622605
9251483464
10110830981
1157619a58
123114a371
1319c66681
1410a10429
159ae3c21
hex69b2585

110830981 has 2 divisors, whose sum is σ = 110830982. Its totient is φ = 110830980.

The previous prime is 110830963. The next prime is 110831023. The reversal of 110830981 is 189038011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110460100 + 370881 = 10510^2 + 609^2 .

It is a cyclic number.

It is not a de Polignac number, because 110830981 - 25 = 110830949 is a prime.

It is a super-2 number, since 2×1108309812 = 24567012698844722, which contains 22 as substring.

It is equal to p6348055 and since 110830981 and 6348055 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110830901) by changing a digit.

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 as a sum of consecutive naturals, namely, 55415490 + 55415491.

It is an arithmetic number, because the mean of its divisors is an integer number (55415491).

Almost surely, 2110830981 is an apocalyptic number.

It is an amenable number.

110830981 is a deficient number, since it is larger than the sum of its proper divisors (1).

110830981 is an equidigital number, since it uses as much as digits as its factorization.

110830981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 110830981 is about 10527.6294102709. The cubic root of 110830981 is about 480.3454992280.

Adding to 110830981 its reverse (189038011), we get a palindrome (299868992).

The spelling of 110830981 in words is "one hundred ten million, eight hundred thirty thousand, nine hundred eighty-one".