Search a number
-
+
304030904 = 2338003863
BaseRepresentation
bin10010000111110…
…010010010111000
3210012002100222212
4102013302102320
51110312442104
650100234252
710351135322
oct2207622270
9705070885
10304030904
11146687a11
128599b988
134acac758
142c542612
151ba5836e
hex121f24b8

304030904 has 8 divisors (see below), whose sum is σ = 570057960. Its totient is φ = 152015448.

The previous prime is 304030901. The next prime is 304030943. The reversal of 304030904 is 409030403.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 304030904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304030901) 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 as a sum of consecutive naturals, namely, 19001924 + ... + 19001939.

It is an arithmetic number, because the mean of its divisors is an integer number (71257245).

Almost surely, 2304030904 is an apocalyptic number.

It is an amenable number.

304030904 is a deficient number, since it is larger than the sum of its proper divisors (266027056).

304030904 is a wasteful number, since it uses less digits than its factorization.

304030904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38003869 (or 38003865 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 304030904 is about 17436.4819846206. The cubic root of 304030904 is about 672.4178653439.

The spelling of 304030904 in words is "three hundred four million, thirty thousand, nine hundred four".

Divisors: 1 2 4 8 38003863 76007726 152015452 304030904