Search a number
-
+
421313 is a prime number
BaseRepresentation
bin1100110110111000001
3210101221012
41212313001
5101440223
613010305
73403214
oct1466701
9711835
10421313
112685a2
12183995
131199c9
14ad77b
1584c78
hex66dc1

421313 has 2 divisors, whose sum is σ = 421314. Its totient is φ = 421312.

The previous prime is 421303. The next prime is 421331. The reversal of 421313 is 313124.

Together with next prime (421331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418609 + 2704 = 647^2 + 52^2 .

It is a cyclic number.

It is not a de Polignac number, because 421313 - 212 = 417217 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (421303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210656 + 210657.

It is an arithmetic number, because the mean of its divisors is an integer number (210657).

2421313 is an apocalyptic number.

It is an amenable number.

421313 is a deficient number, since it is larger than the sum of its proper divisors (1).

421313 is an equidigital number, since it uses as much as digits as its factorization.

421313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 14.

The square root of 421313 is about 649.0862808595. The cubic root of 421313 is about 74.9666814969.

Adding to 421313 its reverse (313124), we get a palindrome (734437).

The spelling of 421313 in words is "four hundred twenty-one thousand, three hundred thirteen".