Base | Representation |
---|---|
bin | 101001001101… |
… | …011111001001 |
3 | 202022212010111 |
4 | 221031133021 |
5 | 10231200040 |
6 | 1023314321 |
7 | 160553023 |
oct | 51153711 |
9 | 22285114 |
10 | 10803145 |
11 | 6109621 |
12 | 374b9a1 |
13 | 23132c2 |
14 | 1613013 |
15 | e35dea |
hex | a4d7c9 |
10803145 has 4 divisors (see below), whose sum is σ = 12963780. Its totient is φ = 8642512.
The previous prime is 10803137. The next prime is 10803193. The reversal of 10803145 is 54130801.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54130801 = 2663 ⋅20327.
It can be written as a sum of positive squares in 2 ways, for example, as 5914624 + 4888521 = 2432^2 + 2211^2 .
It is a cyclic number.
It is not a de Polignac number, because 10803145 - 23 = 10803137 is a prime.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 1080310 + ... + 1080319.
It is an arithmetic number, because the mean of its divisors is an integer number (3240945).
Almost surely, 210803145 is an apocalyptic number.
It is an amenable number.
10803145 is a deficient number, since it is larger than the sum of its proper divisors (2160635).
10803145 is an equidigital number, since it uses as much as digits as its factorization.
10803145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2160634.
The product of its (nonzero) digits is 480, while the sum is 22.
The square root of 10803145 is about 3286.8138067131. The cubic root of 10803145 is about 221.0633439084.
Adding to 10803145 its reverse (54130801), we get a palindrome (64933946).
It can be divided in two parts, 1080 and 3145, that added together give a square (4225 = 652).
The spelling of 10803145 in words is "ten million, eight hundred three thousand, one hundred forty-five".
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