Base | Representation |
---|---|
bin | 11101111110111011111… |
… | …10000111001110011001 |
3 | 10122111011220000000201221 |
4 | 32333131332013032121 |
5 | 113334343113343001 |
6 | 2105135504212041 |
7 | 134300561656144 |
oct | 16773576071631 |
9 | 3574156000657 |
10 | 1030221231001 |
11 | 367a07033066 |
12 | 1477b700a021 |
13 | 761c343c751 |
14 | 37c11ddd05b |
15 | 1bbe99e01a1 |
hex | efddf87399 |
1030221231001 has 4 divisors (see below), whose sum is σ = 1040842068532. Its totient is φ = 1019600393472.
The previous prime is 1030221230999. The next prime is 1030221231031. The reversal of 1030221231001 is 1001321220301.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 199755363600 + 830465867401 = 446940^2 + 911299^2 .
It is a cyclic number.
It is not a de Polignac number, because 1030221231001 - 21 = 1030221230999 is a prime.
It is a super-2 number, since 2×10302212310012 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1030221231031) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5310418620 + ... + 5310418813.
It is an arithmetic number, because the mean of its divisors is an integer number (260210517133).
Almost surely, 21030221231001 is an apocalyptic number.
It is an amenable number.
1030221231001 is a deficient number, since it is larger than the sum of its proper divisors (10620837531).
1030221231001 is an equidigital number, since it uses as much as digits as its factorization.
1030221231001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10620837530.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 1030221231001 its reverse (1001321220301), we get a palindrome (2031542451302).
The spelling of 1030221231001 in words is "one trillion, thirty billion, two hundred twenty-one million, two hundred thirty-one thousand, one".
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