Base | Representation |
---|---|
bin | 11100110001011110… |
… | …000000001001011100 |
3 | 2221202002212100220100 |
4 | 130301132000021130 |
5 | 1001233022011310 |
6 | 22105353021100 |
7 | 2142412532514 |
oct | 346136001134 |
9 | 87662770810 |
10 | 30894719580 |
11 | 1211429a0aa |
12 | 5ba26b4790 |
13 | 2bb486017a |
14 | 16d11cc844 |
15 | c0c460ec0 |
hex | 73178025c |
30894719580 has 36 divisors (see below), whose sum is σ = 93713983272. Its totient is φ = 8238591840.
The previous prime is 30894719563. The next prime is 30894719683. The reversal of 30894719580 is 8591749803.
30894719580 is a `hidden beast` number, since 3 + 0 + 8 + 9 + 47 + 19 + 580 = 666.
It is a tau number, because it is divible by the number of its divisors (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85818486 + ... + 85818845.
It is an arithmetic number, because the mean of its divisors is an integer number (2603166202).
Almost surely, 230894719580 is an apocalyptic number.
30894719580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30894719580 is an abundant number, since it is smaller than the sum of its proper divisors (62819263692).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30894719580 is a wasteful number, since it uses less digits than its factorization.
30894719580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 171637346 (or 171637341 counting only the distinct ones).
The product of its (nonzero) digits is 2177280, while the sum is 54.
The spelling of 30894719580 in words is "thirty billion, eight hundred ninety-four million, seven hundred nineteen thousand, five hundred eighty".
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