Base | Representation |
---|---|
bin | 101011111001… |
… | …0001100101101 |
3 | 1121022010201112 |
4 | 1113302030231 |
5 | 21342342031 |
6 | 2141121405 |
7 | 366412535 |
oct | 127621455 |
9 | 47263645 |
10 | 23012141 |
11 | 11a983a9 |
12 | 7859265 |
13 | 49c9469 |
14 | 30b04c5 |
15 | 204862b |
hex | 15f232d |
23012141 has 4 divisors (see below), whose sum is σ = 23035452. Its totient is φ = 22988832.
The previous prime is 23012117. The next prime is 23012149. The reversal of 23012141 is 14121032.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 20967241 + 2044900 = 4579^2 + 1430^2 .
It is a cyclic number.
It is not a de Polignac number, because 23012141 - 210 = 23011117 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23012149) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10106 + ... + 12171.
It is an arithmetic number, because the mean of its divisors is an integer number (5758863).
Almost surely, 223012141 is an apocalyptic number.
It is an amenable number.
23012141 is a deficient number, since it is larger than the sum of its proper divisors (23311).
23012141 is a wasteful number, since it uses less digits than its factorization.
23012141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23310.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 23012141 is about 4797.0971430648. The cubic root of 23012141 is about 284.4367288771.
Adding to 23012141 its reverse (14121032), we get a palindrome (37133173).
The spelling of 23012141 in words is "twenty-three million, twelve thousand, one hundred forty-one".
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