Base | Representation |
---|---|
bin | 101100000011… |
… | …0011010100011 |
3 | 1121110100022102 |
4 | 1120012122203 |
5 | 21403014242 |
6 | 2143001015 |
7 | 400206131 |
oct | 130063243 |
9 | 47410272 |
10 | 23094947 |
11 | 12044637 |
12 | 789916b |
13 | 4a28065 |
14 | 30d2751 |
15 | 2062e32 |
hex | 16066a3 |
23094947 has 4 divisors (see below), whose sum is σ = 23163816. Its totient is φ = 23026080.
The previous prime is 23094893. The next prime is 23094949. The reversal of 23094947 is 74949032.
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 23094947 - 214 = 23078563 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 23094947.
It is not an unprimeable number, because it can be changed into a prime (23094949) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33929 + ... + 34602.
It is an arithmetic number, because the mean of its divisors is an integer number (5790954).
Almost surely, 223094947 is an apocalyptic number.
23094947 is a deficient number, since it is larger than the sum of its proper divisors (68869).
23094947 is an equidigital number, since it uses as much as digits as its factorization.
23094947 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 68868.
The product of its (nonzero) digits is 54432, while the sum is 38.
The square root of 23094947 is about 4805.7202373838. The cubic root of 23094947 is about 284.7774891928. Note that the first 3 decimals are identical.
The spelling of 23094947 in words is "twenty-three million, ninety-four thousand, nine hundred forty-seven".
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