Search a number
-
+
11980225 = 52479209
BaseRepresentation
bin101101101100…
…110111000001
3211112122210001
4231230313001
511031331400
61104440001
7203554525
oct55546701
924478701
1011980225
116842a14
124019001
132635cba
14183bd85
1510b9a6a
hexb6cdc1

11980225 has 6 divisors (see below), whose sum is σ = 14855510. Its totient is φ = 9584160.

The previous prime is 11980207. The next prime is 11980231. The reversal of 11980225 is 52208911.

It can be written as a sum of positive squares in 3 ways, for example, as 201601 + 11778624 = 449^2 + 3432^2 .

It is not a de Polignac number, because 11980225 - 211 = 11978177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11980193 and 11980202.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 239580 + ... + 239629.

Almost surely, 211980225 is an apocalyptic number.

It is an amenable number.

11980225 is a deficient number, since it is larger than the sum of its proper divisors (2875285).

11980225 is an equidigital number, since it uses as much as digits as its factorization.

11980225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479219 (or 479214 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 11980225 is about 3461.2461628726. The cubic root of 11980225 is about 228.8170197883.

The spelling of 11980225 in words is "eleven million, nine hundred eighty thousand, two hundred twenty-five".

Divisors: 1 5 25 479209 2396045 11980225