Base | Representation |
---|---|
bin | 10010110100001100… |
… | …010111011111100111 |
3 | 1221010222112020122111 |
4 | 102310030113133213 |
5 | 312333432310043 |
6 | 13140420341451 |
7 | 1313435515600 |
oct | 226414273747 |
9 | 57128466574 |
10 | 20203010023 |
11 | 86280884a9 |
12 | 3ab9b44887 |
13 | 1b9c777001 |
14 | d9924cda7 |
15 | 7d39bc09d |
hex | 4b43177e7 |
20203010023 has 12 divisors (see below), whose sum is σ = 24738380760. Its totient is φ = 16405450992.
The previous prime is 20203009999. The next prime is 20203010033. The reversal of 20203010023 is 32001030202.
It is a happy number.
It is not a de Polignac number, because 20203010023 - 213 = 20203001831 is a prime.
It is a super-2 number, since 2×202030100232 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 20203009985 and 20203010012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20203010033) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10849236 + ... + 10851097.
It is an arithmetic number, because the mean of its divisors is an integer number (2061531730).
Almost surely, 220203010023 is an apocalyptic number.
20203010023 is a deficient number, since it is larger than the sum of its proper divisors (4535370737).
20203010023 is a wasteful number, since it uses less digits than its factorization.
20203010023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21700366 (or 21700359 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 13.
Adding to 20203010023 its reverse (32001030202), we get a palindrome (52204040225).
The spelling of 20203010023 in words is "twenty billion, two hundred three million, ten thousand, twenty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •