Search a number
-
+
30047333 is a prime number
BaseRepresentation
bin111001010011…
…1110001100101
32002112120012012
41302213301211
530143003313
62552004005
7513253361
oct162476145
962476165
1030047333
1115a63008
12a090605
1362c06b4
143dc22a1
152987da8
hex1ca7c65

30047333 has 2 divisors, whose sum is σ = 30047334. Its totient is φ = 30047332.

The previous prime is 30047323. The next prime is 30047357. The reversal of 30047333 is 33374003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25877569 + 4169764 = 5087^2 + 2042^2 .

It is a cyclic number.

It is not a de Polignac number, because 30047333 - 210 = 30046309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30047299 and 30047308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30047323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15023666 + 15023667.

It is an arithmetic number, because the mean of its divisors is an integer number (15023667).

Almost surely, 230047333 is an apocalyptic number.

It is an amenable number.

30047333 is a deficient number, since it is larger than the sum of its proper divisors (1).

30047333 is an equidigital number, since it uses as much as digits as its factorization.

30047333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 23.

The square root of 30047333 is about 5481.5447640241. The cubic root of 30047333 is about 310.8865809888.

The spelling of 30047333 in words is "thirty million, forty-seven thousand, three hundred thirty-three".