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69005 = 537373
BaseRepresentation
bin10000110110001101
310111122202
4100312031
54202010
61251245
7405116
oct206615
9114582
1069005
1147932
1233b25
1325541
141b20d
15156a5
hex10d8d

69005 has 8 divisors (see below), whose sum is σ = 85272. Its totient is φ = 53568.

The previous prime is 69001. The next prime is 69011. The reversal of 69005 is 50096.

It can be written as a sum of positive squares in 4 ways, for example, as 20164 + 48841 = 142^2 + 221^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 69005 - 22 = 69001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69001) 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, 2 + ... + 371.

It is an arithmetic number, because the mean of its divisors is an integer number (10659).

269005 is an apocalyptic number.

It is an amenable number.

69005 is a deficient number, since it is larger than the sum of its proper divisors (16267).

69005 is a wasteful number, since it uses less digits than its factorization.

69005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 69005 is about 262.6880278962. The cubic root of 69005 is about 41.0166499895.

The spelling of 69005 in words is "sixty-nine thousand, five".

Divisors: 1 5 37 185 373 1865 13801 69005