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11660725 = 521727437
BaseRepresentation
bin101100011110…
…110110110101
3210221102111201
4230132312311
510441120400
61053532501
7201054166
oct54366665
923842451
1011660725
11664496a
123aa4131
13255374b
14179776d
15105506a
hexb1edb5

11660725 has 12 divisors (see below), whose sum is σ = 15310404. Its totient is φ = 8779520.

The previous prime is 11660723. The next prime is 11660729. The reversal of 11660725 is 52706611.

It can be written as a sum of positive squares in 6 ways, for example, as 5329 + 11655396 = 73^2 + 3414^2 .

It is not a de Polignac number, because 11660725 - 21 = 11660723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11660693 and 11660702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13294 + ... + 14143.

It is an arithmetic number, because the mean of its divisors is an integer number (1275867).

Almost surely, 211660725 is an apocalyptic number.

It is an amenable number.

11660725 is a deficient number, since it is larger than the sum of its proper divisors (3649679).

11660725 is a wasteful number, since it uses less digits than its factorization.

11660725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27464 (or 27459 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 11660725 is about 3414.7803736112. The cubic root of 11660725 is about 226.7645614724.

The spelling of 11660725 in words is "eleven million, six hundred sixty thousand, seven hundred twenty-five".

Divisors: 1 5 17 25 85 425 27437 137185 466429 685925 2332145 11660725