Base | Representation |
---|---|
bin | 11100000011010111… |
… | …110000100110100110 |
3 | 2212202012121011100221 |
4 | 130003113300212212 |
5 | 443142030043420 |
6 | 21500524354554 |
7 | 2114302042603 |
oct | 340327604646 |
9 | 85665534327 |
10 | 30121331110 |
11 | 11857784982 |
12 | 5a076a5a5a |
13 | 2ac0566b60 |
14 | 165a5cd6aa |
15 | bb45e3caa |
hex | 7035f09a6 |
30121331110 has 64 divisors (see below), whose sum is σ = 62035243200. Its totient is φ = 10447944192.
The previous prime is 30121331063. The next prime is 30121331129. The reversal of 30121331110 is 1113312103.
It is a congruent number.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 31521 + ... + 247459.
It is an arithmetic number, because the mean of its divisors is an integer number (969300675).
Almost surely, 230121331110 is an apocalyptic number.
30121331110 is an abundant number, since it is smaller than the sum of its proper divisors (31913912090).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30121331110 is a wasteful number, since it uses less digits than its factorization.
30121331110 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 216025.
The product of its (nonzero) digits is 54, while the sum is 16.
Adding to 30121331110 its reverse (1113312103), we get a palindrome (31234643213).
The spelling of 30121331110 in words is "thirty billion, one hundred twenty-one million, three hundred thirty-one thousand, one hundred ten".
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