Search a number
-
+
54231313 = 137395849
BaseRepresentation
bin1100111011100…
…0000100010001
310210001020101011
43032320010101
5102340400223
65214210521
71225646533
oct316700421
9123036334
1054231313
1128680874
12161b3a41
13b30a346
1472b9853
154b6380d
hex33b8111

54231313 has 4 divisors (see below), whose sum is σ = 54627300. Its totient is φ = 53835328.

The previous prime is 54231271. The next prime is 54231323. The reversal of 54231313 is 31313245.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40857664 + 13373649 = 6392^2 + 3657^2 .

It is a cyclic number.

It is not a de Polignac number, because 54231313 - 29 = 54230801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54231323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197788 + ... + 198061.

It is an arithmetic number, because the mean of its divisors is an integer number (13656825).

Almost surely, 254231313 is an apocalyptic number.

It is an amenable number.

54231313 is a deficient number, since it is larger than the sum of its proper divisors (395987).

54231313 is a wasteful number, since it uses less digits than its factorization.

54231313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395986.

The product of its digits is 1080, while the sum is 22.

The square root of 54231313 is about 7364.1912658485. The cubic root of 54231313 is about 378.5152427016.

Adding to 54231313 its reverse (31313245), we get a palindrome (85544558).

The spelling of 54231313 in words is "fifty-four million, two hundred thirty-one thousand, three hundred thirteen".

Divisors: 1 137 395849 54231313