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142092 = 22323947
BaseRepresentation
bin100010101100001100
321012220200
4202230030
514021332
63013500
71131156
oct425414
9235820
10142092
1197835
126a290
134c8a2
1439ad6
152c17c
hex22b0c

142092 has 18 divisors (see below), whose sum is σ = 359268. Its totient is φ = 47352.

The previous prime is 142067. The next prime is 142097. The reversal of 142092 is 290241.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142092.

It is not an unprimeable number, because it can be changed into a prime (142097) by changing a digit.

142092 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 5 ways as a sum of consecutive naturals, for example, 1938 + ... + 2009.

2142092 is an apocalyptic number.

142092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142092 is an abundant number, since it is smaller than the sum of its proper divisors (217176).

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

142092 is a wasteful number, since it uses less digits than its factorization.

142092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957 (or 3952 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 142092 is about 376.9509251879. The cubic root of 142092 is about 52.1822990144.

The spelling of 142092 in words is "one hundred forty-two thousand, ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 3947 7894 11841 15788 23682 35523 47364 71046 142092