Search a number
-
+
30445443511 = 731877159979
BaseRepresentation
bin11100010110101100…
…001001100110110111
32220120210110202222221
4130112230021212313
5444323013143021
621553023303211
72125315666660
oct342654114667
986523422887
1030445443511
1111a0372836a
125a9814ab07
132b42757b42
14168b67c367
15bd2cb7241
hex716b099b7

30445443511 has 16 divisors (see below), whose sum is σ = 35958384640. Its totient is φ = 25225331040.

The previous prime is 30445443493. The next prime is 30445443517. The reversal of 30445443511 is 11534454403.

It is not a de Polignac number, because 30445443511 - 217 = 30445312439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30445443517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110320 + ... + 270298.

It is an arithmetic number, because the mean of its divisors is an integer number (2247399040).

Almost surely, 230445443511 is an apocalyptic number.

30445443511 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30445443511 is a deficient number, since it is larger than the sum of its proper divisors (5512941129).

30445443511 is a wasteful number, since it uses less digits than its factorization.

30445443511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160894.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 30445443511 its reverse (11534454403), we get a palindrome (41979897914).

The spelling of 30445443511 in words is "thirty billion, four hundred forty-five million, four hundred forty-three thousand, five hundred eleven".

Divisors: 1 7 31 217 877 6139 27187 159979 190309 1119853 4959349 34715443 140301583 982111081 4349349073 30445443511