Search a number
-
+
30113130231 = 324181607399
BaseRepresentation
bin11100000010111000…
…011110011011110111
32212201122011111212200
4130002320132123313
5443132430131411
621500032515543
72114142245412
oct340270363367
985648144780
1030113130231
1111853093498
125a049abbb3
132abb955172
141659496b79
15bb3a23e56
hex702e1e6f7

30113130231 has 12 divisors (see below), whose sum is σ = 44557640400. Its totient is φ = 19585775520.

The previous prime is 30113130221. The next prime is 30113130233. The reversal of 30113130231 is 13203131103.

It is a happy number.

30113130231 is a `hidden beast` number, since 301 + 1 + 3 + 130 + 231 = 666.

It is not a de Polignac number, because 30113130231 - 211 = 30113128183 is a prime.

It is a super-2 number, since 2×301131302312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30113130233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40803331 + ... + 40804068.

It is an arithmetic number, because the mean of its divisors is an integer number (3713136700).

Almost surely, 230113130231 is an apocalyptic number.

30113130231 is a deficient number, since it is larger than the sum of its proper divisors (14444510169).

30113130231 is a wasteful number, since it uses less digits than its factorization.

30113130231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81607446 (or 81607443 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 30113130231 its reverse (13203131103), we get a palindrome (43316261334).

The spelling of 30113130231 in words is "thirty billion, one hundred thirteen million, one hundred thirty thousand, two hundred thirty-one".

Divisors: 1 3 9 41 123 369 81607399 244822197 734466591 3345903359 10037710077 30113130231