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142195 = 528439
BaseRepresentation
bin100010101101110011
321020001111
4202231303
514022240
63014151
71131364
oct425563
9236044
10142195
1197919
126a357
134c951
1439b6b
152c1ea
hex22b73

142195 has 4 divisors (see below), whose sum is σ = 170640. Its totient is φ = 113752.

The previous prime is 142193. The next prime is 142211. The reversal of 142195 is 591241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 591241 = 784463.

It is a cyclic number.

It is not a de Polignac number, because 142195 - 21 = 142193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14215 + ... + 14224.

It is an arithmetic number, because the mean of its divisors is an integer number (42660).

2142195 is an apocalyptic number.

142195 is a deficient number, since it is larger than the sum of its proper divisors (28445).

142195 is an equidigital number, since it uses as much as digits as its factorization.

142195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28444.

The product of its digits is 360, while the sum is 22.

The square root of 142195 is about 377.0875229970. The cubic root of 142195 is about 52.1949046469.

It can be divided in two parts, 14 and 2195, that added together give a square (2209 = 472).

The spelling of 142195 in words is "one hundred forty-two thousand, one hundred ninety-five".

Divisors: 1 5 28439 142195