Search a number
-
+
103220444231 = 269947382373
BaseRepresentation
bin110000000100001101…
…0101111110001000111
3100212102121110212012222
41200020122233301013
53142343413203411
6115230244202555
710312620204512
oct1401032576107
9325377425188
10103220444231
113a859282563
121800839945b
13996ca88948
144dd2a4bd79
152a41d254db
hex18086afc47

103220444231 has 4 divisors (see below), whose sum is σ = 103221096552. Its totient is φ = 103219791912.

The previous prime is 103220444213. The next prime is 103220444233. The reversal of 103220444231 is 132444022301.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 103220444231 - 226 = 103153335367 is a prime.

It is a super-2 number, since 2×1032204442312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103220444231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103220444233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78761 + ... + 461133.

It is an arithmetic number, because the mean of its divisors is an integer number (25805274138).

Almost surely, 2103220444231 is an apocalyptic number.

103220444231 is a deficient number, since it is larger than the sum of its proper divisors (652321).

103220444231 is an equidigital number, since it uses as much as digits as its factorization.

103220444231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652320.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 103220444231 its reverse (132444022301), we get a palindrome (235664466532).

The spelling of 103220444231 in words is "one hundred three billion, two hundred twenty million, four hundred forty-four thousand, two hundred thirty-one".

Divisors: 1 269947 382373 103220444231