Search a number
-
+
4486381 is a prime number
BaseRepresentation
bin10001000111010011101101
322102221011021
4101013103231
52122031011
6240054141
753063554
oct21072355
98387137
104486381
112594759
121604351
13c11083
1484ad9b
155d9471
hex4474ed

4486381 has 2 divisors, whose sum is σ = 4486382. Its totient is φ = 4486380.

The previous prime is 4486379. The next prime is 4486411. The reversal of 4486381 is 1836844.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3553225 + 933156 = 1885^2 + 966^2 .

It is a cyclic number.

It is not a de Polignac number, because 4486381 - 21 = 4486379 is a prime.

It is a super-2 number, since 2×44863812 = 40255228954322, which contains 22 as substring.

Together with 4486379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4486681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2243190 + 2243191.

It is an arithmetic number, because the mean of its divisors is an integer number (2243191).

Almost surely, 24486381 is an apocalyptic number.

It is an amenable number.

4486381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4486381 is an equidigital number, since it uses as much as digits as its factorization.

4486381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 34.

The square root of 4486381 is about 2118.1078820494. The cubic root of 4486381 is about 164.9296424856.

It can be divided in two parts, 44863 and 81, that added together give a palindrome (44944).

The spelling of 4486381 in words is "four million, four hundred eighty-six thousand, three hundred eighty-one".