Search a number
-
+
6245381 is a prime number
BaseRepresentation
bin10111110100110000000101
3102202022001102
4113310300011
53044323011
6341505445
7104041052
oct27646005
912668042
106245381
11358627a
122112285
1313a88bc
14b88029
1583573b
hex5f4c05

6245381 has 2 divisors, whose sum is σ = 6245382. Its totient is φ = 6245380.

The previous prime is 6245339. The next prime is 6245383. The reversal of 6245381 is 1835426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3389281 + 2856100 = 1841^2 + 1690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6245381 is a prime.

It is a super-2 number, since 2×62453812 = 78009567670322, which contains 22 as substring.

Together with 6245383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6245383) 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 as a sum of consecutive naturals, namely, 3122690 + 3122691.

It is an arithmetic number, because the mean of its divisors is an integer number (3122691).

Almost surely, 26245381 is an apocalyptic number.

It is an amenable number.

6245381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6245381 is an equidigital number, since it uses as much as digits as its factorization.

6245381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 6245381 is about 2499.0760292556. The cubic root of 6245381 is about 184.1561863049.

The spelling of 6245381 in words is "six million, two hundred forty-five thousand, three hundred eighty-one".