Base | Representation |
---|---|
bin | 11101111110111011111… |
… | …10011010100001000101 |
3 | 10122111011220011001010121 |
4 | 32333131332122201011 |
5 | 113334343123410041 |
6 | 2105135510021541 |
7 | 134300562435421 |
oct | 16773576324105 |
9 | 3574156131117 |
10 | 1030221310021 |
11 | 367a07087472 |
12 | 1477b70478b1 |
13 | 761c34696c7 |
14 | 37c1201db81 |
15 | 1bbe9a087d1 |
hex | efddf9a845 |
1030221310021 has 8 divisors (see below), whose sum is σ = 1045689584544. Its totient is φ = 1014755736720.
The previous prime is 1030221310007. The next prime is 1030221310037. The reversal of 1030221310021 is 1200131220301.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1030221310021 - 25 = 1030221309989 is a prime.
It is a super-2 number, since 2×10302213100212 (a number of 25 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1030221309977 and 1030221310004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1030221310621) 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, 99831 + ... + 1438891.
It is an arithmetic number, because the mean of its divisors is an integer number (130711198068).
Almost surely, 21030221310021 is an apocalyptic number.
It is an amenable number.
1030221310021 is a deficient number, since it is larger than the sum of its proper divisors (15468274523).
1030221310021 is a wasteful number, since it uses less digits than its factorization.
1030221310021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1350611.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 1030221310021 its reverse (1200131220301), we get a palindrome (2230352530322).
The spelling of 1030221310021 in words is "one trillion, thirty billion, two hundred twenty-one million, three hundred ten thousand, twenty-one".
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