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83169 = 329241
BaseRepresentation
bin10100010011100001
311020002100
4110103201
510130134
61441013
7464322
oct242341
9136070
1083169
1157539
1240169
132bb18
1422449
1519999
hex144e1

83169 has 6 divisors (see below), whose sum is σ = 120146. Its totient is φ = 55440.

The previous prime is 83137. The next prime is 83177. The reversal of 83169 is 96138.

It can be written as a sum of positive squares in only one way, i.e., 82944 + 225 = 288^2 + 15^2 .

It is not a de Polignac number, because 83169 - 25 = 83137 is a prime.

It is a super-2 number, since 2×831692 = 13834165122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 14 and base 15.

It is not an unprimeable number, because it can be changed into a prime (83269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4612 + ... + 4629.

283169 is an apocalyptic number.

It is an amenable number.

83169 is a deficient number, since it is larger than the sum of its proper divisors (36977).

83169 is a wasteful number, since it uses less digits than its factorization.

83169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9247 (or 9244 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 83169 is about 288.3903604492. The cubic root of 83169 is about 43.6502926650.

It can be divided in two parts, 831 and 69, that added together give a square (900 = 302).

The spelling of 83169 in words is "eighty-three thousand, one hundred sixty-nine".

Divisors: 1 3 9 9241 27723 83169