Base | Representation |
---|---|
bin | 10010111010100100… |
… | …100110000000100111 |
3 | 1221102102220010112200 |
4 | 102322210212000213 |
5 | 313043331233411 |
6 | 13155202145543 |
7 | 1316205233430 |
oct | 227244460047 |
9 | 57372803480 |
10 | 20310024231 |
11 | 868252a8a2 |
12 | 3b299522b3 |
13 | 1bb89a5323 |
14 | da9548487 |
15 | 7dd0a9e56 |
hex | 4ba926027 |
20310024231 has 24 divisors (see below), whose sum is σ = 33579546624. Its totient is φ = 11587767120.
The previous prime is 20310024211. The next prime is 20310024247. The reversal of 20310024231 is 13242001302.
It is not a de Polignac number, because 20310024231 - 213 = 20310016039 is a prime.
It is a super-2 number, since 2×203100242312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20310024211) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208375 + ... + 289896.
It is an arithmetic number, because the mean of its divisors is an integer number (1399147776).
Almost surely, 220310024231 is an apocalyptic number.
20310024231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
20310024231 is a deficient number, since it is larger than the sum of its proper divisors (13269522393).
20310024231 is a wasteful number, since it uses less digits than its factorization.
20310024231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 498931 (or 498928 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 20310024231 its reverse (13242001302), we get a palindrome (33552025533).
The spelling of 20310024231 in words is "twenty billion, three hundred ten million, twenty-four thousand, two hundred thirty-one".
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