Base | Representation |
---|---|
bin | 11100010000101011… |
… | …100101111000000101 |
3 | 2220022202210010011012 |
4 | 130100223211320011 |
5 | 444121211240421 |
6 | 21535022452005 |
7 | 2122653063203 |
oct | 342053457005 |
9 | 86282703135 |
10 | 30344633861 |
11 | 11961833603 |
12 | 5a6a434005 |
13 | 2b278bc969 |
14 | 167c11a073 |
15 | bc900295b |
hex | 710ae5e05 |
30344633861 has 32 divisors (see below), whose sum is σ = 33042594816. Its totient is φ = 27791280000.
The previous prime is 30344633797. The next prime is 30344633881. The reversal of 30344633861 is 16833644303.
It is a cyclic number.
It is not a de Polignac number, because 30344633861 - 26 = 30344633797 is a prime.
It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Harshad number since it is a multiple of its sum of digits (41).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30344633881) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20912186 + ... + 20913636.
It is an arithmetic number, because the mean of its divisors is an integer number (1032581088).
Almost surely, 230344633861 is an apocalyptic number.
It is an amenable number.
30344633861 is a deficient number, since it is larger than the sum of its proper divisors (2697960955).
30344633861 is a wasteful number, since it uses less digits than its factorization.
30344633861 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1913.
The product of its (nonzero) digits is 373248, while the sum is 41.
The spelling of 30344633861 in words is "thirty billion, three hundred forty-four million, six hundred thirty-three thousand, eight hundred sixty-one".
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