Search a number
-
+
4198309 is a prime number
BaseRepresentation
bin10000000000111110100101
321220021222221
4100000332211
52033321214
6225552341
750453653
oct20007645
97807887
104198309
112408285
1214a56b1
13b3cc0b
147b3dd3
1557de24
hex400fa5

4198309 has 2 divisors, whose sum is σ = 4198310. Its totient is φ = 4198308.

The previous prime is 4198307. The next prime is 4198319. The reversal of 4198309 is 9038914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4190209 + 8100 = 2047^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 4198309 - 21 = 4198307 is a prime.

Together with 4198307, it forms a pair of twin primes.

4198309 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4198307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2099154 + 2099155.

It is an arithmetic number, because the mean of its divisors is an integer number (2099155).

Almost surely, 24198309 is an apocalyptic number.

It is an amenable number.

4198309 is a deficient number, since it is larger than the sum of its proper divisors (1).

4198309 is an equidigital number, since it uses as much as digits as its factorization.

4198309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 4198309 is about 2048.9775499014. The cubic root of 4198309 is about 161.3212084590.

The spelling of 4198309 in words is "four million, one hundred ninety-eight thousand, three hundred nine".