Search a number
-
+
30231231133 = 611254739499
BaseRepresentation
bin11100001001111010…
…111111101010011101
32220000212101122212011
4130021322333222131
5443403143344013
621515452111221
72120105140045
oct341172775235
986025348764
1030231231133
1111903818444
125a38465511
132b0a26585c
14166b03a725
15bbe0a1c3d
hex709ebfa9d

30231231133 has 8 divisors (see below), whose sum is σ = 30730052000. Its totient is φ = 29732514480.

The previous prime is 30231231097. The next prime is 30231231143. The reversal of 30231231133 is 33113213203.

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 30231231133 - 29 = 30231230621 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 (30231231143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745618 + ... + 785116.

It is an arithmetic number, because the mean of its divisors is an integer number (3841256500).

Almost surely, 230231231133 is an apocalyptic number.

It is an amenable number.

30231231133 is a deficient number, since it is larger than the sum of its proper divisors (498820867).

30231231133 is a wasteful number, since it uses less digits than its factorization.

30231231133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52107.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 30231231133 its reverse (33113213203), we get a palindrome (63344444336).

The spelling of 30231231133 in words is "thirty billion, two hundred thirty-one million, two hundred thirty-one thousand, one hundred thirty-three".

Divisors: 1 61 12547 39499 765367 2409439 495593953 30231231133