Base | Representation |
---|---|
bin | 10010110100001101… |
… | …001101111100000111 |
3 | 1221010222221120120001 |
4 | 102310031031330013 |
5 | 312334011424111 |
6 | 13140425222131 |
7 | 1313440435012 |
oct | 226415157407 |
9 | 57128846501 |
10 | 20203233031 |
11 | 8628220003 |
12 | 3aba031947 |
13 | 1b9c824677 |
14 | d992aa379 |
15 | 7d3a131c1 |
hex | 4b434df07 |
20203233031 has 2 divisors, whose sum is σ = 20203233032. Its totient is φ = 20203233030.
The previous prime is 20203233013. The next prime is 20203233067. The reversal of 20203233031 is 13033230202.
It is a happy number.
Together with previous prime (20203233013) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 20203233031 - 221 = 20201135879 is a prime.
It is a super-2 number, since 2×202032330312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20203233731) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101616515 + 10101616516.
It is an arithmetic number, because the mean of its divisors is an integer number (10101616516).
Almost surely, 220203233031 is an apocalyptic number.
20203233031 is a deficient number, since it is larger than the sum of its proper divisors (1).
20203233031 is an equidigital number, since it uses as much as digits as its factorization.
20203233031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 648, while the sum is 19.
Adding to 20203233031 its reverse (13033230202), we get a palindrome (33236463233).
The spelling of 20203233031 in words is "twenty billion, two hundred three million, two hundred thirty-three thousand, thirty-one".
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