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1285325 = 5251413
BaseRepresentation
bin100111001110011001101
32102022010122
410321303031
5312112300
643314325
713632206
oct4716315
92368118
101285325
117a8758
1251b9a5
13360062
142565ad
151a5c85
hex139ccd

1285325 has 6 divisors (see below), whose sum is σ = 1593834. Its totient is φ = 1028240.

The previous prime is 1285301. The next prime is 1285351. The reversal of 1285325 is 5235821.

It can be written as a sum of positive squares in 3 ways, for example, as 37636 + 1247689 = 194^2 + 1117^2 .

It is not a de Polignac number, because 1285325 - 28 = 1285069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1285294 and 1285303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25682 + ... + 25731.

It is an arithmetic number, because the mean of its divisors is an integer number (265639).

21285325 is an apocalyptic number.

It is an amenable number.

1285325 is a deficient number, since it is larger than the sum of its proper divisors (308509).

1285325 is an equidigital number, since it uses as much as digits as its factorization.

1285325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51423 (or 51418 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 1285325 is about 1133.7217471673. The cubic root of 1285325 is about 108.7270617054.

The spelling of 1285325 in words is "one million, two hundred eighty-five thousand, three hundred twenty-five".

Divisors: 1 5 25 51413 257065 1285325