Search a number
-
+
6222131 = 52311897
BaseRepresentation
bin10111101111000100110011
3102201010011022
4113233010303
53043102011
6341210055
7103613216
oct27570463
912633138
106222131
11356a863
12210092b
13139b146
14b7d77d
1582d8db
hex5ef133

6222131 has 4 divisors (see below), whose sum is σ = 6234552. Its totient is φ = 6209712.

The previous prime is 6222113. The next prime is 6222149. The reversal of 6222131 is 1312226.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1312226 = 2656113.

It is an interprime number because it is at equal distance from previous prime (6222113) and next prime (6222149).

It is a cyclic number.

It is not a de Polignac number, because 6222131 - 210 = 6221107 is a prime.

It is a super-2 number, since 2×62221312 = 77429828362322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6222191) 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, 5426 + ... + 6471.

It is an arithmetic number, because the mean of its divisors is an integer number (1558638).

Almost surely, 26222131 is an apocalyptic number.

6222131 is a deficient number, since it is larger than the sum of its proper divisors (12421).

6222131 is a wasteful number, since it uses less digits than its factorization.

6222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12420.

The product of its digits is 144, while the sum is 17.

The square root of 6222131 is about 2494.4199726590. The cubic root of 6222131 is about 183.9273795810.

Adding to 6222131 its reverse (1312226), we get a palindrome (7534357).

The spelling of 6222131 in words is "six million, two hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 523 11897 6222131