Search a number
-
+
306947 is a prime number
BaseRepresentation
bin1001010111100000011
3120121001102
41022330003
534310242
610325015
72415614
oct1127403
9517042
10306947
1119a683
1212976b
13a9934
147dc0b
1560e32
hex4af03

306947 has 2 divisors, whose sum is σ = 306948. Its totient is φ = 306946.

The previous prime is 306941. The next prime is 306949. The reversal of 306947 is 749603.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 306947 - 26 = 306883 is a prime.

Together with 306949, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 306947.

It is not a weakly prime, because it can be changed into another prime (306941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153473 + 153474.

It is an arithmetic number, because the mean of its divisors is an integer number (153474).

2306947 is an apocalyptic number.

306947 is a deficient number, since it is larger than the sum of its proper divisors (1).

306947 is an equidigital number, since it uses as much as digits as its factorization.

306947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 306947 is about 554.0279776329. The cubic root of 306947 is about 67.4560848326.

The spelling of 306947 in words is "three hundred six thousand, nine hundred forty-seven".