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1307065 = 5733581
BaseRepresentation
bin100111111000110111001
32110101221211
410333012321
5313311230
644003121
714052454
oct4770671
92411854
101307065
11813021
125304a1
13369c16
1426049b
151ac42a
hex13f1b9

1307065 has 8 divisors (see below), whose sum is σ = 1590408. Its totient is φ = 1031040.

The previous prime is 1307063. The next prime is 1307069. The reversal of 1307065 is 5607031.

1307065 = T54 + T55 + ... + T199.

It can be written as a sum of positive squares in 4 ways, for example, as 393129 + 913936 = 627^2 + 956^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1307065 - 21 = 1307063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1307063) 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 7 ways as a sum of consecutive naturals, for example, 1426 + ... + 2155.

It is an arithmetic number, because the mean of its divisors is an integer number (198801).

21307065 is an apocalyptic number.

It is an amenable number.

1307065 is a deficient number, since it is larger than the sum of its proper divisors (283343).

1307065 is an equidigital number, since it uses as much as digits as its factorization.

1307065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 1307065 is about 1143.2694345604. The cubic root of 1307065 is about 109.3366412427.

The spelling of 1307065 in words is "one million, three hundred seven thousand, sixty-five".

Divisors: 1 5 73 365 3581 17905 261413 1307065