Base | Representation |
---|---|
bin | 10101100111100011… |
… | …001000110110100111 |
3 | 2012220200122220111121 |
4 | 111213203020312213 |
5 | 340014244213111 |
6 | 14355151514411 |
7 | 1451134413640 |
oct | 254743106647 |
9 | 65820586447 |
10 | 23212101031 |
11 | 9931698079 |
12 | 45b9828a07 |
13 | 225bcc2432 |
14 | 11a2b406c7 |
15 | 90cc59871 |
hex | 5678c8da7 |
23212101031 has 8 divisors (see below), whose sum is σ = 26529060384. Its totient is φ = 19895377920.
The previous prime is 23212100959. The next prime is 23212101049. The reversal of 23212101031 is 13010121232.
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 23212101031 - 27 = 23212100903 is a prime.
It is a super-2 number, since 2×232121010312 (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 = 23212100996 and 23212101014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23212101131) 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 7 ways as a sum of consecutive naturals, for example, 285591 + ... + 357751.
It is an arithmetic number, because the mean of its divisors is an integer number (3316132548).
Almost surely, 223212101031 is an apocalyptic number.
23212101031 is a deficient number, since it is larger than the sum of its proper divisors (3316959353).
23212101031 is an equidigital number, since it uses as much as digits as its factorization.
23212101031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 118121.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 23212101031 its reverse (13010121232), we get a palindrome (36222222263).
The spelling of 23212101031 in words is "twenty-three billion, two hundred twelve million, one hundred one thousand, thirty-one".
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