Base | Representation |
---|---|
bin | 10101100111100111… |
… | …010101100000010111 |
3 | 2012220202201210222011 |
4 | 111213213111200113 |
5 | 340020034421211 |
6 | 14355231245051 |
7 | 1451146646050 |
oct | 254747254027 |
9 | 65822653864 |
10 | 23213201431 |
11 | 99322798a2 |
12 | 45ba079787 |
13 | 225c2b9264 |
14 | 11a2d49727 |
15 | 90cdc5921 |
hex | 5679d5817 |
23213201431 has 16 divisors (see below), whose sum is σ = 26933440000. Its totient is φ = 19594159200.
The previous prime is 23213201413. The next prime is 23213201443. The reversal of 23213201431 is 13410231232.
It is not a de Polignac number, because 23213201431 - 213 = 23213193239 is a prime.
It is a super-2 number, since 2×232132014312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23213201731) 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 15 ways as a sum of consecutive naturals, for example, 2339581 + ... + 2349481.
It is an arithmetic number, because the mean of its divisors is an integer number (1683340000).
Almost surely, 223213201431 is an apocalyptic number.
23213201431 is a deficient number, since it is larger than the sum of its proper divisors (3720238569).
23213201431 is an equidigital number, since it uses as much as digits as its factorization.
23213201431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14974.
The product of its (nonzero) digits is 864, while the sum is 22.
Adding to 23213201431 its reverse (13410231232), we get a palindrome (36623432663).
The spelling of 23213201431 in words is "twenty-three billion, two hundred thirteen million, two hundred one thousand, four hundred thirty-one".
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