Base | Representation |
---|---|
bin | 10101100111100010… |
… | …111000000000011111 |
3 | 2012220200112101212001 |
4 | 111213202320000133 |
5 | 340014240011111 |
6 | 14355150223131 |
7 | 1451134005526 |
oct | 254742700037 |
9 | 65820471761 |
10 | 23212032031 |
11 | 9931650251 |
12 | 45b97b4aa7 |
13 | 225bc99bc6 |
14 | 11a2b234bd |
15 | 90cc441c1 |
hex | 5678b801f |
23212032031 has 4 divisors (see below), whose sum is σ = 23215620064. Its totient is φ = 23208444000.
The previous prime is 23212031959. The next prime is 23212032083. The reversal of 23212032031 is 13023021232.
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 23212032031 - 225 = 23178477599 is a prime.
It is a super-2 number, since 2×232120320312 (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 (23212032131) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784295 + ... + 1797256.
It is an arithmetic number, because the mean of its divisors is an integer number (5803905016).
Almost surely, 223212032031 is an apocalyptic number.
23212032031 is a deficient number, since it is larger than the sum of its proper divisors (3588033).
23212032031 is an equidigital number, since it uses as much as digits as its factorization.
23212032031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3588032.
The product of its (nonzero) digits is 432, while the sum is 19.
Adding to 23212032031 its reverse (13023021232), we get a palindrome (36235053263).
The spelling of 23212032031 in words is "twenty-three billion, two hundred twelve million, thirty-two thousand, thirty-one".
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