Base | Representation |
---|---|
bin | 101000100000… |
… | …110001111001 |
3 | 201222112221021 |
4 | 220200301321 |
5 | 10204320100 |
6 | 1015342441 |
7 | 156161113 |
oct | 50406171 |
9 | 21875837 |
10 | 10620025 |
11 | 5aa3a89 |
12 | 3681a21 |
13 | 227ab50 |
14 | 15a63b3 |
15 | deba1a |
hex | a20c79 |
10620025 has 24 divisors (see below), whose sum is σ = 14545944. Its totient is φ = 7641600.
The previous prime is 10620023. The next prime is 10620041. The reversal of 10620025 is 52002601.
It is a happy number.
It can be written as a sum of positive squares in 12 ways, for example, as 7706176 + 2913849 = 2776^2 + 1707^2 .
It is not a de Polignac number, because 10620025 - 21 = 10620023 is a prime.
It is a super-3 number, since 3×106200253 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 10619990 and 10620008.
It is not an unprimeable number, because it can be changed into a prime (10620023) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12927 + ... + 13723.
It is an arithmetic number, because the mean of its divisors is an integer number (606081).
Almost surely, 210620025 is an apocalyptic number.
It is an amenable number.
10620025 is a deficient number, since it is larger than the sum of its proper divisors (3925919).
10620025 is a wasteful number, since it uses less digits than its factorization.
10620025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 861 (or 856 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 16.
The square root of 10620025 is about 3258.8379830854. The cubic root of 10620025 is about 219.8071657372.
Adding to 10620025 its reverse (52002601), we get a palindrome (62622626).
The spelling of 10620025 in words is "ten million, six hundred twenty thousand, twenty-five".
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