Search a number
-
+
20304031041 = 327322286207
BaseRepresentation
bin10010111010001101…
…101110110101000001
31221102000121122102200
4102322031232311001
5313040312443131
613154425503413
71316103262530
oct227215566501
957360548380
1020304031041
11867a107048
123b27941b69
131bb7687468
14da8828317
157dc7c42e6
hex4ba36ed41

20304031041 has 12 divisors (see below), whose sum is σ = 33517765632. Its totient is φ = 11602303416.

The previous prime is 20304031001. The next prime is 20304031043. The reversal of 20304031041 is 14013040302.

It is not a de Polignac number, because 20304031041 - 221 = 20301933889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20304031043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161143041 + ... + 161143166.

It is an arithmetic number, because the mean of its divisors is an integer number (2793147136).

Almost surely, 220304031041 is an apocalyptic number.

20304031041 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20304031041 is a deficient number, since it is larger than the sum of its proper divisors (13213734591).

20304031041 is a wasteful number, since it uses less digits than its factorization.

20304031041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322286220 (or 322286217 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20304031041 its reverse (14013040302), we get a palindrome (34317071343).

The spelling of 20304031041 in words is "twenty billion, three hundred four million, thirty-one thousand, forty-one".

Divisors: 1 3 7 9 21 63 322286207 966858621 2256003449 2900575863 6768010347 20304031041