Base | Representation |
---|---|
bin | 10101100010101110… |
… | …100001111011000111 |
3 | 2012201001102202211102 |
4 | 111202232201323013 |
5 | 334333041414343 |
6 | 14343141530315 |
7 | 1446132652304 |
oct | 254256417307 |
9 | 65631382742 |
10 | 23131201223 |
11 | 989aa61929 |
12 | 459671399b |
13 | 2248308620 |
14 | 11960c20ab |
15 | 905ac93b8 |
hex | 562ba1ec7 |
23131201223 has 8 divisors (see below), whose sum is σ = 25993591008. Its totient is φ = 20423535264.
The previous prime is 23131201201. The next prime is 23131201267. The reversal of 23131201223 is 32210213132.
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 23131201223 - 210 = 23131200199 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 23131201195 and 23131201204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23131201523) 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, 38680640 + ... + 38681237.
It is an arithmetic number, because the mean of its divisors is an integer number (3249198876).
Almost surely, 223131201223 is an apocalyptic number.
23131201223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
23131201223 is a deficient number, since it is larger than the sum of its proper divisors (2862389785).
23131201223 is a wasteful number, since it uses less digits than its factorization.
23131201223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77361913.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 23131201223 its reverse (32210213132), we get a palindrome (55341414355).
The spelling of 23131201223 in words is "twenty-three billion, one hundred thirty-one million, two hundred one thousand, two hundred twenty-three".
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