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10806025 = 52432241
BaseRepresentation
bin101001001110…
…001100001001
3202100000002011
4221032030021
510231243100
61023335521
7160564306
oct51161411
922300064
1010806025
1161107aa
1237515a1
1323146c9
1416140ad
15e36bba
hexa4e309

10806025 has 6 divisors (see below), whose sum is σ = 13399502. Its totient is φ = 8644800.

The previous prime is 10806023. The next prime is 10806053. The reversal of 10806025 is 52060801.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1121481 + 9684544 = 1059^2 + 3112^2 .

It is not a de Polignac number, because 10806025 - 21 = 10806023 is a prime.

It is a super-3 number, since 3×108060253 (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10805987 and 10806005.

It is not an unprimeable number, because it can be changed into a prime (10806023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216096 + ... + 216145.

Almost surely, 210806025 is an apocalyptic number.

It is an amenable number.

10806025 is a deficient number, since it is larger than the sum of its proper divisors (2593477).

10806025 is an equidigital number, since it uses as much as digits as its factorization.

10806025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432251 (or 432246 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 10806025 is about 3287.2518917783. The cubic root of 10806025 is about 221.0829865175.

Adding to 10806025 its reverse (52060801), we get a palindrome (62866826).

The spelling of 10806025 in words is "ten million, eight hundred six thousand, twenty-five".

Divisors: 1 5 25 432241 2161205 10806025