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84161 = 7111093
BaseRepresentation
bin10100100011000001
311021110002
4110203001
510143121
61445345
7500240
oct244301
9137402
1084161
1158260
1240855
132c3cc
1422957
1519e0b
hex148c1

84161 has 8 divisors (see below), whose sum is σ = 105024. Its totient is φ = 65520.

The previous prime is 84143. The next prime is 84163. The reversal of 84161 is 16148.

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

It is not a de Polignac number, because 84161 - 210 = 83137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84163) 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 + ... + 623.

It is an arithmetic number, because the mean of its divisors is an integer number (13128).

284161 is an apocalyptic number.

It is an amenable number.

84161 is a deficient number, since it is larger than the sum of its proper divisors (20863).

84161 is a wasteful number, since it uses less digits than its factorization.

84161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111.

The product of its digits is 192, while the sum is 20.

The square root of 84161 is about 290.1051533496. The cubic root of 84161 is about 43.8231538028.

The spelling of 84161 in words is "eighty-four thousand, one hundred sixty-one".

Divisors: 1 7 11 77 1093 7651 12023 84161