Search a number
-
+
305073033 = 3101691011
BaseRepresentation
bin10010001011110…
…000101110001001
3210021001022112020
4102023300232021
51111044314113
650134435053
710363035516
oct2213605611
9707038466
10305073033
11147229981
1286202a89
134b285bb5
142c73430d
151bbb2023
hex122f0b89

305073033 has 4 divisors (see below), whose sum is σ = 406764048. Its totient is φ = 203382020.

The previous prime is 305072981. The next prime is 305073037. The reversal of 305073033 is 330370503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 305073033 - 28 = 305072777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 305072994 and 305073012.

It is not an unprimeable number, because it can be changed into a prime (305073037) 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, 50845503 + ... + 50845508.

It is an arithmetic number, because the mean of its divisors is an integer number (101691012).

Almost surely, 2305073033 is an apocalyptic number.

It is an amenable number.

305073033 is a deficient number, since it is larger than the sum of its proper divisors (101691015).

305073033 is a wasteful number, since it uses less digits than its factorization.

305073033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101691014.

The product of its (nonzero) digits is 2835, while the sum is 24.

The square root of 305073033 is about 17466.3400001260. The cubic root of 305073033 is about 673.1852731070.

The spelling of 305073033 in words is "three hundred five million, seventy-three thousand, thirty-three".

Divisors: 1 3 101691011 305073033