Search a number
-
+
305413043 = 13193121727
BaseRepresentation
bin10010001101000…
…011101110110011
3210021200120221012
4102031003232303
51111141204133
650150021135
710365653015
oct2215035663
9707616835
10305413043
11147441381
12863477ab
134b3748a0
142c7c21b5
151bc2cb48
hex12343bb3

305413043 has 8 divisors (see below), whose sum is σ = 330613248. Its totient is φ = 280456704.

The previous prime is 305413039. The next prime is 305413057. The reversal of 305413043 is 340314503.

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

It is a cyclic number.

It is not a de Polignac number, because 305413043 - 22 = 305413039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305413013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58355 + ... + 63372.

It is an arithmetic number, because the mean of its divisors is an integer number (41326656).

Almost surely, 2305413043 is an apocalyptic number.

305413043 is a deficient number, since it is larger than the sum of its proper divisors (25200205).

305413043 is a wasteful number, since it uses less digits than its factorization.

305413043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121933.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 305413043 is about 17476.0705823706. The cubic root of 305413043 is about 673.4352730726.

Adding to 305413043 its reverse (340314503), we get a palindrome (645727546).

The spelling of 305413043 in words is "three hundred five million, four hundred thirteen thousand, forty-three".

Divisors: 1 13 193 2509 121727 1582451 23493311 305413043