Search a number
-
+
30712334105 = 531463427957
BaseRepresentation
bin11100100110100110…
…010000011100011001
32221021101200020001202
4130212212100130121
51000344324142410
622035315523545
72135036350445
oct344646203431
987241606052
1030712334105
1112030348202
125b515b95b5
132b85b3257b
1416b4cb3825
15beb435ca5
hex726990719

30712334105 has 16 divisors (see below), whose sum is σ = 38125922304. Its totient is φ = 23725880640.

The previous prime is 30712334101. The next prime is 30712334143. The reversal of 30712334105 is 50143321703.

It is not a de Polignac number, because 30712334105 - 22 = 30712334101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30712334101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142214 + ... + 285743.

It is an arithmetic number, because the mean of its divisors is an integer number (2382870144).

Almost surely, 230712334105 is an apocalyptic number.

It is an amenable number.

30712334105 is a deficient number, since it is larger than the sum of its proper divisors (7413588199).

30712334105 is a wasteful number, since it uses less digits than its factorization.

30712334105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428456.

The product of its (nonzero) digits is 7560, while the sum is 29.

Adding to 30712334105 its reverse (50143321703), we get a palindrome (80855655808).

The spelling of 30712334105 in words is "thirty billion, seven hundred twelve million, three hundred thirty-four thousand, one hundred five".

Divisors: 1 5 31 155 463 2315 14353 71765 427957 2139785 13266667 66333335 198144091 990720455 6142466821 30712334105