Base | Representation |
---|---|
bin | 101011111111… |
… | …0101001011011 |
3 | 1121101201200001 |
4 | 1113332221123 |
5 | 21401010011 |
6 | 2142153431 |
7 | 400014310 |
oct | 127765133 |
9 | 47351601 |
10 | 23063131 |
11 | 12022743 |
12 | 7882877 |
13 | 4a16730 |
14 | 30c4d07 |
15 | 20587c1 |
hex | 15fea5b |
23063131 has 16 divisors (see below), whose sum is σ = 29881600. Its totient is φ = 17286048.
The previous prime is 23063123. The next prime is 23063137. The reversal of 23063131 is 13136032.
It is not a de Polignac number, because 23063131 - 23 = 23063123 is a prime.
It is a super-2 number, since 2×230631312 = 1063816023046322, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a junction number, because it is equal to n+sod(n) for n = 23063099 and 23063108.
It is not an unprimeable number, because it can be changed into a prime (23063137) 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 15 ways as a sum of consecutive naturals, for example, 4941 + ... + 8398.
It is an arithmetic number, because the mean of its divisors is an integer number (1867600).
Almost surely, 223063131 is an apocalyptic number.
23063131 is a deficient number, since it is larger than the sum of its proper divisors (6818469).
23063131 is a wasteful number, since it uses less digits than its factorization.
23063131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13378.
The product of its (nonzero) digits is 324, while the sum is 19.
The square root of 23063131 is about 4802.4088747211. The cubic root of 23063131 is about 284.6466576245.
Adding to 23063131 its reverse (13136032), we get a palindrome (36199163).
The spelling of 23063131 in words is "twenty-three million, sixty-three thousand, one hundred thirty-one".
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