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1344031131 = 3448010377
BaseRepresentation
bin101000000011100…
…0100100110011011
310110200000212002210
41100013010212123
510223032444011
6341211130203
745210035052
oct12007044633
93420025083
101344031131
1162a741533
12316143963
131855b35c1
14ca703399
157cedb6a6
hex501c499b

1344031131 has 4 divisors (see below), whose sum is σ = 1792041512. Its totient is φ = 896020752.

The previous prime is 1344031123. The next prime is 1344031147. The reversal of 1344031131 is 1311304431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1311304431 = 3437101477.

It is not a de Polignac number, because 1344031131 - 23 = 1344031123 is a prime.

It is a super-2 number, since 2×13440311312 = 3612839362194278322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1344031098 and 1344031107.

It is not an unprimeable number, because it can be changed into a prime (1344031111) 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 in 3 ways as a sum of consecutive naturals, for example, 224005186 + ... + 224005191.

It is an arithmetic number, because the mean of its divisors is an integer number (448010378).

Almost surely, 21344031131 is an apocalyptic number.

1344031131 is a deficient number, since it is larger than the sum of its proper divisors (448010381).

1344031131 is an equidigital number, since it uses as much as digits as its factorization.

1344031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448010380.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1344031131 is about 36661.0301410094. The cubic root of 1344031131 is about 1103.5781911284.

Adding to 1344031131 its reverse (1311304431), we get a palindrome (2655335562).

The spelling of 1344031131 in words is "one billion, three hundred forty-four million, thirty-one thousand, one hundred thirty-one".

Divisors: 1 3 448010377 1344031131