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69485 = 5131069
BaseRepresentation
bin10000111101101101
310112022112
4100331231
54210420
61253405
7406403
oct207555
9115275
1069485
1148229
1234265
1325820
141b473
15158c5
hex10f6d

69485 has 8 divisors (see below), whose sum is σ = 89880. Its totient is φ = 51264.

The previous prime is 69481. The next prime is 69491. The reversal of 69485 is 58496.

It can be written as a sum of positive squares in 4 ways, for example, as 841 + 68644 = 29^2 + 262^2 .

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 69485 - 22 = 69481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69481) 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, 470 + ... + 599.

It is an arithmetic number, because the mean of its divisors is an integer number (11235).

269485 is an apocalyptic number.

69485 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

69485 is a deficient number, since it is larger than the sum of its proper divisors (20395).

69485 is a wasteful number, since it uses less digits than its factorization.

69485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087.

The product of its digits is 8640, while the sum is 32.

The square root of 69485 is about 263.6000758725. The cubic root of 69485 is about 41.1115345031. Note that the first 3 decimals are identical.

Adding to 69485 its product of digits (8640), we get a 7-th power (78125 = 57).

The spelling of 69485 in words is "sixty-nine thousand, four hundred eighty-five".

Divisors: 1 5 13 65 1069 5345 13897 69485