Search a number
-
+
30330031023 = 3223473117487
BaseRepresentation
bin11100001111110011…
…111000101110101111
32220021202022012211100
4130033303320232233
5444103441443043
621533341454143
72122415003265
oct341763705657
986252265740
1030330031023
111195456a246
125a65571353
132b24879026
14167a1d8435
15bc7abacd3
hex70fcf8baf

30330031023 has 24 divisors (see below), whose sum is σ = 46687500288. Its totient is φ = 18929374992.

The previous prime is 30330030967. The next prime is 30330031033. The reversal of 30330031023 is 32013003303.

30330031023 is a `hidden beast` number, since 3 + 0 + 330 + 0 + 310 + 23 = 666.

It is not a de Polignac number, because 30330031023 - 218 = 30329768879 is a prime.

It is a super-2 number, since 2×303300310232 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30330030987 and 30330031005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30330031033) 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, 1549015 + ... + 1568472.

It is an arithmetic number, because the mean of its divisors is an integer number (1945312512).

Almost surely, 230330031023 is an apocalyptic number.

30330031023 is a deficient number, since it is larger than the sum of its proper divisors (16357469265).

30330031023 is a wasteful number, since it uses less digits than its factorization.

30330031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117563 (or 3117560 counting only the distinct ones).

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

Adding to 30330031023 its reverse (32013003303), we get a palindrome (62343034326).

The spelling of 30330031023 in words is "thirty billion, three hundred thirty million, thirty-one thousand, twenty-three".

Divisors: 1 3 9 23 47 69 141 207 423 1081 3243 9729 3117487 9352461 28057383 71702201 146521889 215106603 439565667 645319809 1318697001 3370003447 10110010341 30330031023