Search a number
-
+
181832239058 = 261249432
BaseRepresentation
bin1010100101011000001…
…0111100011111010010
3122101100012102210201112
42221112002330133102
510434343023122213
6215311011533322
716064654346641
oct2512602743722
9571305383645
10181832239058
1170129616538
122b2a72ba242
13141ba411782
148b2d2a5358
154ae34cdea8
hex2a560bc7d2

181832239058 has 18 divisors (see below), whose sum is σ = 277349052357. Its totient is φ = 89407599960.

The previous prime is 181832239049. The next prime is 181832239081. The reversal of 181832239058 is 850932238181.

It is a happy number.

181832239058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 123168008209 + 58664230849 = 350953^2 + 242207^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=301523.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 181832238997 and 181832239015.

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 8 ways as a sum of consecutive naturals, for example, 36783335 + ... + 36788277.

Almost surely, 2181832239058 is an apocalyptic number.

181832239058 is a deficient number, since it is larger than the sum of its proper divisors (95516813299).

181832239058 is an frugal number, since it uses more digits than its factorization.

181832239058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010 (or 5006 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

Multiplying 181832239058 by its sum of digits (50), we get a square (9091611952900 = 30152302).

The spelling of 181832239058 in words is "one hundred eighty-one billion, eight hundred thirty-two million, two hundred thirty-nine thousand, fifty-eight".

Divisors: 1 2 61 122 3721 4943 7442 9886 301523 603046 18392903 24433249 36785806 48866498 1490428189 2980856378 90916119529 181832239058