Search a number
-
+
30020330331 = 3243531463621
BaseRepresentation
bin11011111101010110…
…011110001101011011
32212111011112210100100
4123331112132031123
5442440201032311
621442515510443
72111634411645
oct337526361533
985434483310
1030020330331
111180576a562
1259998b8423
132aa5662994
14164b01b895
15baa7e2a56
hex6fd59e35b

30020330331 has 24 divisors (see below), whose sum is σ = 45208356336. Its totient is φ = 19179276480.

The previous prime is 30020330321. The next prime is 30020330359. The reversal of 30020330331 is 13303302003.

30020330331 is a `hidden beast` number, since 3 + 0 + 0 + 2 + 0 + 330 + 331 = 666.

It is not a de Polignac number, because 30020330331 - 26 = 30020330267 is a prime.

It is a super-2 number, since 2×300203303312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30020330321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 711300 + ... + 752321.

It is an arithmetic number, because the mean of its divisors is an integer number (1883681514).

Almost surely, 230020330331 is an apocalyptic number.

30020330331 is a deficient number, since it is larger than the sum of its proper divisors (15188026005).

30020330331 is a wasteful number, since it uses less digits than its factorization.

30020330331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463723 (or 1463720 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 18.

Adding to 30020330331 its reverse (13303302003), we get a palindrome (43323632334).

The spelling of 30020330331 in words is "thirty billion, twenty million, three hundred thirty thousand, three hundred thirty-one".

Divisors: 1 3 9 43 53 129 159 387 477 2279 6837 20511 1463621 4390863 13172589 62935703 77571913 188807109 232715739 566421327 698147217 3335592259 10006776777 30020330331