Search a number
-
+
30187235182 = 21310211137167
BaseRepresentation
bin11100000111010011…
…001010011101101110
32212220210121102202111
4130013103022131232
5443310413011212
621511241114234
72116032160006
oct340723123556
985823542674
1030187235182
11118909a8655
125a2578897a
132b01100250
141665267006
15bba2b0ea7
hex7074ca76e

30187235182 has 16 divisors (see below), whose sum is σ = 48811799232. Its totient is φ = 13918911840.

The previous prime is 30187235173. The next prime is 30187235219. The reversal of 30187235182 is 28153278103.

It is a happy number.

It is a super-2 number, since 2×301872351822 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542038 + ... + 595129.

It is an arithmetic number, because the mean of its divisors is an integer number (3050737452).

Almost surely, 230187235182 is an apocalyptic number.

30187235182 is a deficient number, since it is larger than the sum of its proper divisors (18624564050).

30187235182 is a wasteful number, since it uses less digits than its factorization.

30187235182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138203.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 30187235182 in words is "thirty billion, one hundred eighty-seven million, two hundred thirty-five thousand, one hundred eighty-two".

Divisors: 1 2 13 26 1021 2042 13273 26546 1137167 2274334 14783171 29566342 1161047507 2322095014 15093617591 30187235182