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80142 = 2319237
BaseRepresentation
bin10011100100001110
311001221020
4103210032
510031032
61415010
7452436
oct234416
9131836
1080142
1155237
123a466
132a62a
14212c6
1518b2c
hex1390e

80142 has 24 divisors (see below), whose sum is σ = 173736. Its totient is φ = 24624.

The previous prime is 80141. The next prime is 80147. The reversal of 80142 is 24108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2148 + ... + 2184.

It is an arithmetic number, because the mean of its divisors is an integer number (7239).

280142 is an apocalyptic number.

80142 is an abundant number, since it is smaller than the sum of its proper divisors (93594).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86868).

80142 is a wasteful number, since it uses less digits than its factorization.

80142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 80142 is about 283.0936240893. The cubic root of 80142 is about 43.1141728753.

It can be divided in two parts, 80 and 142, that added together give a palindrome (222).

The spelling of 80142 in words is "eighty thousand, one hundred forty-two".

Divisors: 1 2 3 6 19 37 38 57 74 111 114 222 361 703 722 1083 1406 2109 2166 4218 13357 26714 40071 80142