Base | Representation |
---|---|
bin | 10010110101111010… |
… | …111101011000000111 |
3 | 1221020000002010211112 |
4 | 102311322331120013 |
5 | 312413343013111 |
6 | 13143333555235 |
7 | 1314240112514 |
oct | 226572753007 |
9 | 57200063745 |
10 | 20232001031 |
11 | 8642489910 |
12 | 3b077a5b1b |
13 | 1ba5787958 |
14 | d9d03830b |
15 | 7d62e6e8b |
hex | 4b5ebd607 |
20232001031 has 16 divisors (see below), whose sum is σ = 22416569856. Its totient is φ = 18105780000.
The previous prime is 20232000977. The next prime is 20232001033. The reversal of 20232001031 is 13010023202.
It is a happy number.
It is not a de Polignac number, because 20232001031 - 234 = 3052131847 is a prime.
It is a super-2 number, since 2×202320010312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 20232000997 and 20232001015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20232001033) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496646 + ... + 535836.
It is an arithmetic number, because the mean of its divisors is an integer number (1401035616).
Almost surely, 220232001031 is an apocalyptic number.
20232001031 is a deficient number, since it is larger than the sum of its proper divisors (2184568825).
20232001031 is a wasteful number, since it uses less digits than its factorization.
20232001031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39934.
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 20232001031 its reverse (13010023202), we get a palindrome (33242024233).
The spelling of 20232001031 in words is "twenty billion, two hundred thirty-two million, one thousand, thirty-one".
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