Base | Representation |
---|---|
bin | 10101011011100001… |
… | …010111011110000101 |
3 | 2012101121221212021111 |
4 | 111123201113132011 |
5 | 334111114410041 |
6 | 14323142445021 |
7 | 1443134256646 |
oct | 253341273605 |
9 | 65347855244 |
10 | 23010310021 |
11 | 98387a1546 |
12 | 4562133771 |
13 | 222925bb7a |
14 | 11840136cd |
15 | 8ea199981 |
hex | 55b857785 |
23010310021 has 4 divisors (see below), whose sum is σ = 23353747552. Its totient is φ = 22666872492.
The previous prime is 23010310007. The next prime is 23010310091. The reversal of 23010310021 is 12001301032.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 23010310021 - 215 = 23010277253 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 23010309983 and 23010310010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23010310091) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171718665 + ... + 171718798.
It is an arithmetic number, because the mean of its divisors is an integer number (5838436888).
Almost surely, 223010310021 is an apocalyptic number.
It is an amenable number.
23010310021 is a deficient number, since it is larger than the sum of its proper divisors (343437531).
23010310021 is an equidigital number, since it uses as much as digits as its factorization.
23010310021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 343437530.
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 23010310021 its reverse (12001301032), we get a palindrome (35011611053).
The spelling of 23010310021 in words is "twenty-three billion, ten million, three hundred ten thousand, twenty-one".
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