Base | Representation |
---|---|
bin | 11100000010110100… |
… | …100101010111000101 |
3 | 2212201120020200102010 |
4 | 130002310211113011 |
5 | 443132200010041 |
6 | 21455555004433 |
7 | 2114130466140 |
oct | 340264452705 |
9 | 85646220363 |
10 | 30112110021 |
11 | 11852556a44 |
12 | 5a04599719 |
13 | 2abb6889a6 |
14 | 16592ad057 |
15 | bb38c1a16 |
hex | 702d255c5 |
30112110021 has 8 divisors (see below), whose sum is σ = 45885120064. Its totient is φ = 17206920000.
The previous prime is 30112110011. The next prime is 30112110079. The reversal of 30112110021 is 12001121103.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30112110021 - 210 = 30112108997 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30112109979 and 30112110006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30112110001) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716954980 + ... + 716955021.
It is an arithmetic number, because the mean of its divisors is an integer number (5735640008).
Almost surely, 230112110021 is an apocalyptic number.
It is an amenable number.
30112110021 is a deficient number, since it is larger than the sum of its proper divisors (15773010043).
30112110021 is a wasteful number, since it uses less digits than its factorization.
30112110021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1433910011.
The product of its (nonzero) digits is 12, while the sum is 12.
Adding to 30112110021 its reverse (12001121103), we get a palindrome (42113231124).
The spelling of 30112110021 in words is "thirty billion, one hundred twelve million, one hundred ten thousand, twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •