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7265385 = 325161453
BaseRepresentation
bin11011101101110001101001
3111200010020100
4123231301221
53324443020
6415420013
7115516611
oct33556151
914603210
107265385
114112656
122524609
131674c5a
14d71a41
15987a90
hex6edc69

7265385 has 12 divisors (see below), whose sum is σ = 12593412. Its totient is φ = 3874848.

The previous prime is 7265381. The next prime is 7265473. The reversal of 7265385 is 5835627.

It can be written as a sum of positive squares in 2 ways, for example, as 4822416 + 2442969 = 2196^2 + 1563^2 .

It is not a de Polignac number, because 7265385 - 22 = 7265381 is a prime.

It is a Curzon number.

7265385 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7265381) 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, 80682 + ... + 80771.

It is an arithmetic number, because the mean of its divisors is an integer number (1049451).

Almost surely, 27265385 is an apocalyptic number.

It is an amenable number.

7265385 is a deficient number, since it is larger than the sum of its proper divisors (5328027).

7265385 is a wasteful number, since it uses less digits than its factorization.

7265385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161464 (or 161461 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 7265385 is about 2695.4378123043. The cubic root of 7265385 is about 193.6806397583.

The spelling of 7265385 in words is "seven million, two hundred sixty-five thousand, three hundred eighty-five".

Divisors: 1 3 5 9 15 45 161453 484359 807265 1453077 2421795 7265385