Search a number
-
+
130444231223 = 331394091333
BaseRepresentation
bin111100101111100010…
…1010000001000110111
3110110200212211112022002
41321133011100020313
54114122210344343
6135531504325515
712265346446055
oct1713705201067
9413625745262
10130444231223
1150359405679
122134561389b
13c3bac31847
1464564a51d5
1535d6d628b8
hex1e5f150237

130444231223 has 4 divisors (see below), whose sum is σ = 130838322888. Its totient is φ = 130050139560.

The previous prime is 130444231217. The next prime is 130444231243. The reversal of 130444231223 is 322132444031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322132444031 = 1215592650009.

It is a cyclic number.

It is not a de Polignac number, because 130444231223 - 218 = 130443969079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130444231213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197045336 + ... + 197045997.

It is an arithmetic number, because the mean of its divisors is an integer number (32709580722).

Almost surely, 2130444231223 is an apocalyptic number.

130444231223 is a deficient number, since it is larger than the sum of its proper divisors (394091665).

130444231223 is an equidigital number, since it uses as much as digits as its factorization.

130444231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394091664.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 130444231223 its reverse (322132444031), we get a palindrome (452576675254).

The spelling of 130444231223 in words is "one hundred thirty billion, four hundred forty-four million, two hundred thirty-one thousand, two hundred twenty-three".

Divisors: 1 331 394091333 130444231223