Search a number
-
+
6143131 = 10956359
BaseRepresentation
bin10111011011110010011011
3102120002210101
4113123302123
53033040011
6335400231
7103134001
oct27336233
912502711
106143131
113516475
122083077
1313711b7
14b5ca71
158152c1
hex5dbc9b

6143131 has 4 divisors (see below), whose sum is σ = 6199600. Its totient is φ = 6086664.

The previous prime is 6143113. The next prime is 6143141. The reversal of 6143131 is 1313416.

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 6143131 - 27 = 6143003 is a prime.

It is a super-2 number, since 2×61431312 = 75476116966322, 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 = 6143099 and 6143108.

It is not an unprimeable number, because it can be changed into a prime (6143141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28071 + ... + 28288.

It is an arithmetic number, because the mean of its divisors is an integer number (1549900).

Almost surely, 26143131 is an apocalyptic number.

6143131 is a deficient number, since it is larger than the sum of its proper divisors (56469).

6143131 is a wasteful number, since it uses less digits than its factorization.

6143131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56468.

The product of its digits is 216, while the sum is 19.

The square root of 6143131 is about 2478.5340425340. The cubic root of 6143131 is about 183.1456433608.

Adding to 6143131 its reverse (1313416), we get a palindrome (7456547).

The spelling of 6143131 in words is "six million, one hundred forty-three thousand, one hundred thirty-one".

Divisors: 1 109 56359 6143131