Search a number
-
+
304381030 = 2530438103
BaseRepresentation
bin10010001001000…
…111110001100110
3210012202011021111
4102021013301212
51110410143110
650111535234
710354124152
oct2211076146
9705664244
10304381030
111468a6a78
1285b2a51a
134b0a2c25
142c5d4062
151bac6e8a
hex12247c66

304381030 has 8 divisors (see below), whose sum is σ = 547885872. Its totient is φ = 121752408.

The previous prime is 304381009. The next prime is 304381031. The reversal of 304381030 is 30183403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3043810302 = 185295622847721800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 304380992 and 304381010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304381031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15219042 + ... + 15219061.

It is an arithmetic number, because the mean of its divisors is an integer number (68485734).

Almost surely, 2304381030 is an apocalyptic number.

304381030 is a deficient number, since it is larger than the sum of its proper divisors (243504842).

304381030 is a wasteful number, since it uses less digits than its factorization.

304381030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30438110.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 304381030 is about 17446.5191370657. The cubic root of 304381030 is about 672.6758880833.

The spelling of 304381030 in words is "three hundred four million, three hundred eighty-one thousand, thirty".

Divisors: 1 2 5 10 30438103 60876206 152190515 304381030