Search a number
-
+
305050530231 = 3281141793469
BaseRepresentation
bin1000111000001100110…
…11011011000110110111
31002011101111101112202100
410130012123123012313
514444220413431411
6352045511313143
731016302503306
oct4340633330667
91064344345670
10305050530231
1110840a087427
124b15497b7b3
13229c62a0035
1410a9bbd843d
157e05c97456
hex47066db1b7

305050530231 has 12 divisors (see below), whose sum is σ = 441171869320. Its totient is φ = 203116254480.

The previous prime is 305050530217. The next prime is 305050530247. The reversal of 305050530231 is 132035050503.

305050530231 is a `hidden beast` number, since 3 + 0 + 50 + 50 + 530 + 2 + 31 = 666.

It is not a de Polignac number, because 305050530231 - 210 = 305050529207 is a prime.

It is a super-2 number, since 2×3050505302312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305050530195 and 305050530204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305050540231) 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, 20889436 + ... + 20904033.

Almost surely, 2305050530231 is an apocalyptic number.

305050530231 is a deficient number, since it is larger than the sum of its proper divisors (136121339089).

305050530231 is a wasteful number, since it uses less digits than its factorization.

305050530231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41794286 (or 41794283 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

Adding to 305050530231 its reverse (132035050503), we get a palindrome (437085580734).

The spelling of 305050530231 in words is "three hundred five billion, fifty million, five hundred thirty thousand, two hundred thirty-one".

Divisors: 1 3 9 811 2433 7299 41793469 125380407 376141221 33894503359 101683510077 305050530231