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82012 = 22729101
BaseRepresentation
bin10100000001011100
311011111111
4110001130
510111022
61431404
7461050
oct240134
9134444
1082012
1156687
123b564
132b438
1421c60
1519477
hex1405c

82012 has 24 divisors (see below), whose sum is σ = 171360. Its totient is φ = 33600.

The previous prime is 82009. The next prime is 82013. The reversal of 82012 is 21028.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 81983 and 82001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82013) 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, 762 + ... + 862.

It is an arithmetic number, because the mean of its divisors is an integer number (7140).

282012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85680).

82012 is an abundant number, since it is smaller than the sum of its proper divisors (89348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82012 is a wasteful number, since it uses less digits than its factorization.

82012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 82012 is about 286.3773734079. The cubic root of 82012 is about 43.4469340136.

The spelling of 82012 in words is "eighty-two thousand, twelve".

Divisors: 1 2 4 7 14 28 29 58 101 116 202 203 404 406 707 812 1414 2828 2929 5858 11716 20503 41006 82012