Search a number
-
+
10520325 = 325246757
BaseRepresentation
bin101000001000…
…011100000101
3201210111011200
4220020130011
510143122300
61013253113
7155264334
oct50103405
921714150
1010520325
115a36092
123634199
13224465a
14157bd1b
15dcc200
hexa08705

10520325 has 18 divisors (see below), whose sum is σ = 18843474. Its totient is φ = 5610720.

The previous prime is 10520309. The next prime is 10520371. The reversal of 10520325 is 52302501.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2414916 + 8105409 = 1554^2 + 2847^2 .

It is not a de Polignac number, because 10520325 - 24 = 10520309 is a prime.

It is a super-2 number, since 2×105203252 = 221354476211250, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 10520298 and 10520307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23154 + ... + 23603.

Almost surely, 210520325 is an apocalyptic number.

10520325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10520325 is a deficient number, since it is larger than the sum of its proper divisors (8323149).

10520325 is a wasteful number, since it uses less digits than its factorization.

10520325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46773 (or 46765 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 10520325 is about 3243.5050485547. The cubic root of 10520325 is about 219.1171575550.

Adding to 10520325 its reverse (52302501), we get a palindrome (62822826).

The spelling of 10520325 in words is "ten million, five hundred twenty thousand, three hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 46757 140271 233785 420813 701355 1168925 2104065 3506775 10520325