Search a number
-
+
30131031333 = 3137197112181
BaseRepresentation
bin11100000011111100…
…110000110100100101
32212202212211222120110
4130003330300310211
5443202021000313
621501512323233
72114450353254
oct340374606445
985685758513
1030131031333
11118621aa897
125a0a9a3519
132ac2582130
14165b9d679b
15bb53acec3
hex703f30d25

30131031333 has 32 divisors (see below), whose sum is σ = 44327146752. Its totient is φ = 18092390400.

The previous prime is 30131031277. The next prime is 30131031347. The reversal of 30131031333 is 33313013103.

It is not a de Polignac number, because 30131031333 - 212 = 30131027237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131033333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212503 + ... + 324683.

It is an arithmetic number, because the mean of its divisors is an integer number (1385223336).

Almost surely, 230131031333 is an apocalyptic number.

It is an amenable number.

30131031333 is a deficient number, since it is larger than the sum of its proper divisors (14196115419).

30131031333 is a wasteful number, since it uses less digits than its factorization.

30131031333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112365.

The product of its (nonzero) digits is 729, while the sum is 21.

Adding to 30131031333 its reverse (33313013103), we get a palindrome (63444044436).

The spelling of 30131031333 in words is "thirty billion, one hundred thirty-one million, thirty-one thousand, three hundred thirty-three".

Divisors: 1 3 13 39 71 97 213 291 923 1261 2769 3783 6887 20661 89531 112181 268593 336543 1458353 4375059 7964851 10881557 23894553 32644671 103543063 141460241 310629189 424380723 772590547 2317771641 10043677111 30131031333