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161083 = 1312391
BaseRepresentation
bin100111010100111011
322011222001
4213110323
520123313
63241431
71240426
oct472473
9264861
10161083
1110002a
1279277
1358420
14429bd
1532add
hex2753b

161083 has 4 divisors (see below), whose sum is σ = 173488. Its totient is φ = 148680.

The previous prime is 161071. The next prime is 161087. The reversal of 161083 is 380161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 380161 = 2913109.

It is a cyclic number.

It is not a de Polignac number, because 161083 - 217 = 30011 is a prime.

It is a Duffinian number.

161083 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 161083.

It is not an unprimeable number, because it can be changed into a prime (161087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6183 + ... + 6208.

It is an arithmetic number, because the mean of its divisors is an integer number (43372).

2161083 is an apocalyptic number.

161083 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

161083 is a deficient number, since it is larger than the sum of its proper divisors (12405).

161083 is a wasteful number, since it uses less digits than its factorization.

161083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12404.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 161083 is about 401.3514669215. The cubic root of 161083 is about 54.4105650977.

The spelling of 161083 in words is "one hundred sixty-one thousand, eighty-three".

Divisors: 1 13 12391 161083