Search a number
-
+
30555935061 = 310185311687
BaseRepresentation
bin11100011101010001…
…101001000101010101
32220212111101022220120
4130131101221011111
51000034304410221
622012011422153
72131130106531
oct343521510525
986774338816
1030555935061
1111a600352a3
125b09154959
132b5c602b62
14169c200bc1
15bdc8405c6
hex71d469155

30555935061 has 4 divisors (see below), whose sum is σ = 40741246752. Its totient is φ = 20370623372.

The previous prime is 30555935029. The next prime is 30555935083. The reversal of 30555935061 is 16053955503.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16053955503 = 35351318501.

It is a cyclic number.

It is not a de Polignac number, because 30555935061 - 25 = 30555935029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30555935021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5092655841 + ... + 5092655846.

It is an arithmetic number, because the mean of its divisors is an integer number (10185311688).

Almost surely, 230555935061 is an apocalyptic number.

It is an amenable number.

30555935061 is a deficient number, since it is larger than the sum of its proper divisors (10185311691).

30555935061 is a wasteful number, since it uses less digits than its factorization.

30555935061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10185311690.

The product of its (nonzero) digits is 303750, while the sum is 42.

The spelling of 30555935061 in words is "thirty billion, five hundred fifty-five million, nine hundred thirty-five thousand, sixty-one".

Divisors: 1 3 10185311687 30555935061