Base | Representation |
---|---|
bin | 100110111100… |
… | …001111000101 |
3 | 201012122000101 |
4 | 212330033011 |
5 | 10103130242 |
6 | 1002444101 |
7 | 152524336 |
oct | 46741705 |
9 | 21178011 |
10 | 10208197 |
11 | 584262a |
12 | 3503631 |
13 | 216556c |
14 | 14da28d |
15 | d699b7 |
hex | 9bc3c5 |
10208197 has 4 divisors (see below), whose sum is σ = 10214860. Its totient is φ = 10201536.
The previous prime is 10208179. The next prime is 10208213. The reversal of 10208197 is 79180201.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79180201 = 19 ⋅4167379.
It can be written as a sum of positive squares in 2 ways, for example, as 2540836 + 7667361 = 1594^2 + 2769^2 .
It is a cyclic number.
It is not a de Polignac number, because 10208197 - 27 = 10208069 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10208117) 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 3 ways as a sum of consecutive naturals, for example, 253 + ... + 4525.
It is an arithmetic number, because the mean of its divisors is an integer number (2553715).
Almost surely, 210208197 is an apocalyptic number.
It is an amenable number.
10208197 is a deficient number, since it is larger than the sum of its proper divisors (6663).
10208197 is an equidigital number, since it uses as much as digits as its factorization.
10208197 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6662.
The product of its (nonzero) digits is 1008, while the sum is 28.
The square root of 10208197 is about 3195.0269169445. The cubic root of 10208197 is about 216.9283672756.
Adding to 10208197 its reverse (79180201), we get a palindrome (89388398).
The spelling of 10208197 in words is "ten million, two hundred eight thousand, one hundred ninety-seven".
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