Base | Representation |
---|---|
bin | 101011111001… |
… | …0001100010011 |
3 | 1121022010200120 |
4 | 1113302030103 |
5 | 21342341430 |
6 | 2141121323 |
7 | 366412500 |
oct | 127621423 |
9 | 47263616 |
10 | 23012115 |
11 | 11a98385 |
12 | 7859243 |
13 | 49c9449 |
14 | 30b04a7 |
15 | 2048610 |
hex | 15f2313 |
23012115 has 48 divisors (see below), whose sum is σ = 43338240. Its totient is φ = 10395840.
The previous prime is 23012089. The next prime is 23012117. The reversal of 23012115 is 51121032.
It is not a de Polignac number, because 23012115 - 25 = 23012083 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a junction number, because it is equal to n+sod(n) for n = 23012094 and 23012103.
It is not an unprimeable number, because it can be changed into a prime (23012117) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96166 + ... + 96404.
It is an arithmetic number, because the mean of its divisors is an integer number (902880).
Almost surely, 223012115 is an apocalyptic number.
23012115 is a deficient number, since it is larger than the sum of its proper divisors (20326125).
23012115 is a wasteful number, since it uses less digits than its factorization.
23012115 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 392 (or 385 counting only the distinct ones).
The product of its (nonzero) digits is 60, while the sum is 15.
The square root of 23012115 is about 4797.0944330918. The cubic root of 23012115 is about 284.4366217546.
Adding to 23012115 its reverse (51121032), we get a palindrome (74133147).
The spelling of 23012115 in words is "twenty-three million, twelve thousand, one hundred fifteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.083 sec. • engine limits •