Base | Representation |
---|---|
bin | 10101100111011011… |
… | …111001001110101111 |
3 | 2012220120002102120021 |
4 | 111213123321032233 |
5 | 340013302431111 |
6 | 14355043103011 |
7 | 1451112314332 |
oct | 254733711657 |
9 | 65816072507 |
10 | 23210202031 |
11 | 9930610355 |
12 | 45b9071a67 |
13 | 225b7a8c73 |
14 | 11a27a8619 |
15 | 90c9d1d71 |
hex | 5676f93af |
23210202031 has 4 divisors (see below), whose sum is σ = 23214850000. Its totient is φ = 23205554064.
The previous prime is 23210201953. The next prime is 23210202047. The reversal of 23210202031 is 13020201232.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 23210202031 - 215 = 23210169263 is a prime.
It is a super-2 number, since 2×232102020312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 23210201996 and 23210202014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23210208031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2316486 + ... + 2326483.
It is an arithmetic number, because the mean of its divisors is an integer number (5803712500).
Almost surely, 223210202031 is an apocalyptic number.
23210202031 is a deficient number, since it is larger than the sum of its proper divisors (4647969).
23210202031 is an equidigital number, since it uses as much as digits as its factorization.
23210202031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4647968.
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 23210202031 its reverse (13020201232), we get a palindrome (36230403263).
The spelling of 23210202031 in words is "twenty-three billion, two hundred ten million, two hundred two thousand, thirty-one".
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