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142160 = 2451777
BaseRepresentation
bin100010101101010000
321020000012
4202231100
514022120
63014052
71131314
oct425520
9236005
10142160
1197897
126a328
134c925
1439b44
152c1c5
hex22b50

142160 has 20 divisors (see below), whose sum is σ = 330708. Its totient is φ = 56832.

The previous prime is 142159. The next prime is 142169. The reversal of 142160 is 61241.

Added to its reverse (61241) it gives a square (203401 = 4512).

It can be written as a sum of positive squares in 2 ways, for example, as 61504 + 80656 = 248^2 + 284^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142169) 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 3 ways as a sum of consecutive naturals, for example, 809 + ... + 968.

2142160 is an apocalyptic number.

142160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142160 is an abundant number, since it is smaller than the sum of its proper divisors (188548).

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

142160 is a wasteful number, since it uses less digits than its factorization.

142160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790 (or 1784 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 142160 is about 377.0411118167. The cubic root of 142160 is about 52.1906218626.

Adding to 142160 its reverse (61241), we get a square (203401 = 4512).

The spelling of 142160 in words is "one hundred forty-two thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1777 3554 7108 8885 14216 17770 28432 35540 71080 142160