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11782025 = 52471281
BaseRepresentation
bin101100111100…
…011110001001
3211011120220022
4230330132021
511004011100
61100310225
7202100633
oct54743611
924146808
1011782025
116718012
123b42375
132596a18
1417c9a53
15107ae85
hexb3c789

11782025 has 6 divisors (see below), whose sum is σ = 14609742. Its totient is φ = 9425600.

The previous prime is 11782019. The next prime is 11782027. The reversal of 11782025 is 52028711.

It can be written as a sum of positive squares in 3 ways, for example, as 546121 + 11235904 = 739^2 + 3352^2 .

It is not a de Polignac number, because 11782025 - 210 = 11781001 is a prime.

It is a super-2 number, since 2×117820252 = 277632226201250, 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 = 11781985 and 11782003.

It is not an unprimeable number, because it can be changed into a prime (11782027) by changing a digit.

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, 235616 + ... + 235665.

It is an arithmetic number, because the mean of its divisors is an integer number (2434957).

Almost surely, 211782025 is an apocalyptic number.

It is an amenable number.

11782025 is a deficient number, since it is larger than the sum of its proper divisors (2827717).

11782025 is an equidigital number, since it uses as much as digits as its factorization.

11782025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471291 (or 471286 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 11782025 is about 3432.4954479212. The cubic root of 11782025 is about 227.5481522677.

The spelling of 11782025 in words is "eleven million, seven hundred eighty-two thousand, twenty-five".

Divisors: 1 5 25 471281 2356405 11782025