Search a number
-
+
1442324311 = 7723186757
BaseRepresentation
bin101010111111000…
…0001111101010111
310201111222122222221
41111332001331113
510423213334221
6355042003211
750512361101
oct12576017527
93644878887
101442324311
1168017766a
12343046507
1319ca7a24c
14d97ac571
1586955541
hex55f81f57

1442324311 has 4 divisors (see below), whose sum is σ = 1442518792. Its totient is φ = 1442129832.

The previous prime is 1442324267. The next prime is 1442324341. The reversal of 1442324311 is 1134232441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1442324311 - 211 = 1442322263 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 (1442324341) 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, 85656 + ... + 101101.

It is an arithmetic number, because the mean of its divisors is an integer number (360629698).

Almost surely, 21442324311 is an apocalyptic number.

1442324311 is a deficient number, since it is larger than the sum of its proper divisors (194481).

1442324311 is an equidigital number, since it uses as much as digits as its factorization.

1442324311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194480.

The product of its digits is 2304, while the sum is 25.

The square root of 1442324311 is about 37977.9450602583. The cubic root of 1442324311 is about 1129.8504803864.

Adding to 1442324311 its reverse (1134232441), we get a palindrome (2576556752).

The spelling of 1442324311 in words is "one billion, four hundred forty-two million, three hundred twenty-four thousand, three hundred eleven".

Divisors: 1 7723 186757 1442324311