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1312485 = 35175147
BaseRepresentation
bin101000000011011100101
32110200101120
411000123211
5313444420
644044153
714104326
oct5003345
92420346
101312485
118170a9
12533659
1336c525
1426244d
151add40
hex1406e5

1312485 has 16 divisors (see below), whose sum is σ = 2223936. Its totient is φ = 658688.

The previous prime is 1312471. The next prime is 1312513. The reversal of 1312485 is 5842131.

It is a cyclic number.

It is not a de Polignac number, because 1312485 - 28 = 1312229 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2319 + ... + 2828.

It is an arithmetic number, because the mean of its divisors is an integer number (138996).

21312485 is an apocalyptic number.

1312485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312485 is a deficient number, since it is larger than the sum of its proper divisors (911451).

1312485 is a wasteful number, since it uses less digits than its factorization.

1312485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5172.

The product of its digits is 960, while the sum is 24.

The square root of 1312485 is about 1145.6373771835. The cubic root of 1312485 is about 109.4875613985.

The spelling of 1312485 in words is "one million, three hundred twelve thousand, four hundred eighty-five".

Divisors: 1 3 5 15 17 51 85 255 5147 15441 25735 77205 87499 262497 437495 1312485