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827065 = 5533121
BaseRepresentation
bin11001001111010111001
31120000112001
43021322321
5202431230
625421001
710013161
oct3117271
91500461
10827065
11515428
1233a761
1322c5b5
141775a1
151150ca
hexc9eb9

827065 has 8 divisors (see below), whose sum is σ = 1011528. Its totient is φ = 648960.

The previous prime is 827063. The next prime is 827087. The reversal of 827065 is 560728.

It can be written as a sum of positive squares in 4 ways, for example, as 2601 + 824464 = 51^2 + 908^2 .

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

It is not a de Polignac number, because 827065 - 21 = 827063 is a prime.

It is an Ulam number.

It is a Duffinian number.

827065 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (827063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296 + ... + 1825.

It is an arithmetic number, because the mean of its divisors is an integer number (126441).

2827065 is an apocalyptic number.

It is an amenable number.

827065 is a deficient number, since it is larger than the sum of its proper divisors (184463).

827065 is a wasteful number, since it uses less digits than its factorization.

827065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 827065 is about 909.4311408787. The cubic root of 827065 is about 93.8670597000.

The spelling of 827065 in words is "eight hundred twenty-seven thousand, sixty-five".

Divisors: 1 5 53 265 3121 15605 165413 827065