Search a number
-
+
10660225 = 526532
BaseRepresentation
bin101000101010…
…100110000001
3202001121002011
4220222212001
510212111400
61020252521
7156416242
oct50524601
922047064
1010660225
116021204
1236a1141
132293234
1415b6cc9
15e088ba
hexa2a981

10660225 has 9 divisors (see below), whose sum is σ = 13238953. Its totient is φ = 8515120.

The previous prime is 10660217. The next prime is 10660229. The reversal of 10660225 is 52206601.

The square root of 10660225 is 3265.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1803649 + 8856576 = 1343^2 + 2976^2 .

It is not a de Polignac number, because 10660225 - 23 = 10660217 is a prime.

It is a super-2 number, since 2×106602252 = 227280794101250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10660196 and 10660205.

It is not an unprimeable number, because it can be changed into a prime (10660229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15999 + ... + 16651.

Almost surely, 210660225 is an apocalyptic number.

10660225 is the 3265-th square number.

10660225 is the 1633-rd centered octagonal number.

It is an amenable number.

10660225 is a deficient number, since it is larger than the sum of its proper divisors (2578728).

10660225 is an frugal number, since it uses more digits than its factorization.

10660225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The cubic root of 10660225 is about 220.0841620142.

Adding to 10660225 its reverse (52206601), we get a palindrome (62866826).

The spelling of 10660225 in words is "ten million, six hundred sixty thousand, two hundred twenty-five".

Divisors: 1 5 25 653 3265 16325 426409 2132045 10660225