Base | Representation |
---|---|
bin | 10010110101110011… |
… | …011100101001111111 |
3 | 1221012212101002211102 |
4 | 102311303130221333 |
5 | 312412342010444 |
6 | 13143223443315 |
7 | 1314214302062 |
oct | 226563345177 |
9 | 57185332742 |
10 | 20230031999 |
11 | 8641364511 |
12 | 3b06bb653b |
13 | 1ba5248648 |
14 | d9ca848d9 |
15 | 7d605884e |
hex | 4b5cdca7f |
20230031999 has 8 divisors (see below), whose sum is σ = 20362566000. Its totient is φ = 20097544896.
The previous prime is 20230031993. The next prime is 20230032037. The reversal of 20230031999 is 99913003202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20230031999 - 232 = 15935064703 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20230031993) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1412627 + ... + 1426875.
It is an arithmetic number, because the mean of its divisors is an integer number (2545320750).
Almost surely, 220230031999 is an apocalyptic number.
20230031999 is a deficient number, since it is larger than the sum of its proper divisors (132534001).
20230031999 is a wasteful number, since it uses less digits than its factorization.
20230031999 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23449.
The product of its (nonzero) digits is 26244, while the sum is 38.
The spelling of 20230031999 in words is "twenty billion, two hundred thirty million, thirty-one thousand, nine hundred ninety-nine".
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