Base | Representation |
---|---|
bin | 101001101010… |
… | …000001101011 |
3 | 202112210111001 |
4 | 221222001223 |
5 | 10243420133 |
6 | 1030015431 |
7 | 161550601 |
oct | 51520153 |
9 | 22483431 |
10 | 10920043 |
11 | 6189432 |
12 | 37a7577 |
13 | 2354584 |
14 | 1643871 |
15 | e5a87d |
hex | a6a06b |
10920043 has 4 divisors (see below), whose sum is σ = 10977408. Its totient is φ = 10862680.
The previous prime is 10920031. The next prime is 10920053. The reversal of 10920043 is 34002901.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34002901 = 23 ⋅1478387.
It is a cyclic number.
It is not a de Polignac number, because 10920043 - 213 = 10911851 is a prime.
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 10920043.
It is not an unprimeable number, because it can be changed into a prime (10920053) 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, 28396 + ... + 28777.
It is an arithmetic number, because the mean of its divisors is an integer number (2744352).
Almost surely, 210920043 is an apocalyptic number.
10920043 is a deficient number, since it is larger than the sum of its proper divisors (57365).
10920043 is an equidigital number, since it uses as much as digits as its factorization.
10920043 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57364.
The product of its (nonzero) digits is 216, while the sum is 19.
The square root of 10920043 is about 3304.5488345612. The cubic root of 10920043 is about 221.8578412440.
Adding to 10920043 its reverse (34002901), we get a palindrome (44922944).
The spelling of 10920043 in words is "ten million, nine hundred twenty thousand, forty-three".
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