Base | Representation |
---|---|
bin | 10010101011101100… |
… | …10000101011000101 |
3 | 221220000122001221111 |
4 | 21111312100223011 |
5 | 131020214101041 |
6 | 4335142245021 |
7 | 503362323541 |
oct | 112566205305 |
9 | 27800561844 |
10 | 10030222021 |
11 | 4287887296 |
12 | 1b3b126771 |
13 | c3b03c521 |
14 | 6b218ca21 |
15 | 3da87c981 |
hex | 255d90ac5 |
10030222021 has 4 divisors (see below), whose sum is σ = 10032431500. Its totient is φ = 10028012544.
The previous prime is 10030221937. The next prime is 10030222039. The reversal of 10030222021 is 12022203001.
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 3447333796 + 6582888225 = 58714^2 + 81135^2 .
It is a cyclic number.
It is not a de Polignac number, because 10030222021 - 27 = 10030221893 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 10030221992 and 10030222010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10030222121) 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, 1097916 + ... + 1107013.
It is an arithmetic number, because the mean of its divisors is an integer number (2508107875).
Almost surely, 210030222021 is an apocalyptic number.
It is an amenable number.
10030222021 is a deficient number, since it is larger than the sum of its proper divisors (2209479).
10030222021 is an equidigital number, since it uses as much as digits as its factorization.
10030222021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2209478.
The product of its (nonzero) digits is 48, while the sum is 13.
Adding to 10030222021 its reverse (12022203001), we get a palindrome (22052425022).
The spelling of 10030222021 in words is "ten billion, thirty million, two hundred twenty-two thousand, twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •