Search a number
-
+
1223830117 is a prime number
BaseRepresentation
bin100100011110010…
…0010101001100101
310011021212000022101
41020330202221211
510001300030432
6321234532101
742220245556
oct11074425145
93137760271
101223830117
11578902754
122a1a37031
13166719043
14b877432d
15726964e7
hex48f22a65

1223830117 has 2 divisors, whose sum is σ = 1223830118. Its totient is φ = 1223830116.

The previous prime is 1223830099. The next prime is 1223830141. The reversal of 1223830117 is 7110383221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1190664036 + 33166081 = 34506^2 + 5759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1223830117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223830217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611915058 + 611915059.

It is an arithmetic number, because the mean of its divisors is an integer number (611915059).

Almost surely, 21223830117 is an apocalyptic number.

It is an amenable number.

1223830117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223830117 is an equidigital number, since it uses as much as digits as its factorization.

1223830117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1223830117 is about 34983.2833936439. The cubic root of 1223830117 is about 1069.6467570671.

The spelling of 1223830117 in words is "one billion, two hundred twenty-three million, eight hundred thirty thousand, one hundred seventeen".