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8469 = 32941
BaseRepresentation
bin10000100010101
3102121200
42010111
5232334
6103113
733456
oct20425
912550
108469
1163aa
124a99
133b16
14312d
152799
hex2115

8469 has 6 divisors (see below), whose sum is σ = 12246. Its totient is φ = 5640.

The previous prime is 8467. The next prime is 8501. The reversal of 8469 is 9648.

8469 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7569 + 900 = 87^2 + 30^2 .

It is not a de Polignac number, because 8469 - 21 = 8467 is a prime.

It is a super-2 number, since 2×84692 = 143447922, which contains 22 as substring.

It is a plaindrome in base 7 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 462 + ... + 479.

It is an arithmetic number, because the mean of its divisors is an integer number (2041).

28469 is an apocalyptic number.

It is an amenable number.

8469 is a deficient number, since it is larger than the sum of its proper divisors (3777).

8469 is a wasteful number, since it uses less digits than its factorization.

8469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947 (or 944 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 8469 is about 92.0271699011. The cubic root of 8469 is about 20.3834352267.

It can be divided in two parts, 84 and 69, that added together give a triangular number (153 = T17).

The spelling of 8469 in words is "eight thousand, four hundred sixty-nine".

Divisors: 1 3 9 941 2823 8469