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305211041 = 19142711257
BaseRepresentation
bin10010001100010…
…010011010100001
3210021022022211122
4102030102122201
51111113223131
650141422025
710364152052
oct2214223241
9707268748
10305211041
11147313633
128626a915
134b303965
142c76c729
151bbdcd7b
hex123126a1

305211041 has 8 divisors (see below), whose sum is σ = 321528480. Its totient is φ = 288919008.

The previous prime is 305211019. The next prime is 305211059. The reversal of 305211041 is 140112503.

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 305211041 - 26 = 305210977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305211941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21485 + ... + 32741.

It is an arithmetic number, because the mean of its divisors is an integer number (40191060).

Almost surely, 2305211041 is an apocalyptic number.

It is an amenable number.

305211041 is a deficient number, since it is larger than the sum of its proper divisors (16317439).

305211041 is a wasteful number, since it uses less digits than its factorization.

305211041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12703.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 305211041 is about 17470.2902380012. The cubic root of 305211041 is about 673.2867689646.

Adding to 305211041 its reverse (140112503), we get a palindrome (445323544).

The spelling of 305211041 in words is "three hundred five million, two hundred eleven thousand, forty-one".

Divisors: 1 19 1427 11257 27113 213883 16063739 305211041