Base | Representation |
---|---|
bin | 111100001101111… |
… | …010111010001001 |
3 | 2121102000122112100 |
4 | 330031322322021 |
5 | 4032113011441 |
6 | 244125504013 |
7 | 34015153632 |
oct | 7415727211 |
9 | 2542018470 |
10 | 1010282121 |
11 | 479306a02 |
12 | 242412009 |
13 | 1313ca294 |
14 | 98266889 |
15 | 5da62cb6 |
hex | 3c37ae89 |
1010282121 has 12 divisors (see below), whose sum is σ = 1460750148. Its totient is φ = 672850464.
The previous prime is 1010282083. The next prime is 1010282149. The reversal of 1010282121 is 1212820101.
It can be written as a sum of positive squares in 2 ways, for example, as 95824521 + 914457600 = 9789^2 + 30240^2 .
It is not a de Polignac number, because 1010282121 - 26 = 1010282057 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1010282094 and 1010282103.
It is not an unprimeable number, because it can be changed into a prime (1010282191) 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 11 ways as a sum of consecutive naturals, for example, 46290 + ... + 64523.
It is an arithmetic number, because the mean of its divisors is an integer number (121729179).
Almost surely, 21010282121 is an apocalyptic number.
It is an amenable number.
1010282121 is a deficient number, since it is larger than the sum of its proper divisors (450468027).
1010282121 is a wasteful number, since it uses less digits than its factorization.
1010282121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 111832 (or 111829 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 18.
The square root of 1010282121 is about 31784.9354411803. The cubic root of 1010282121 is about 1003.4156934215.
The spelling of 1010282121 in words is "one billion, ten million, two hundred eighty-two thousand, one hundred twenty-one".
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