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142073 = 314583
BaseRepresentation
bin100010101011111001
321012212222
4202223321
514021243
63013425
71131131
oct425371
9235788
10142073
1197818
126a275
134c889
1439ac1
152c168
hex22af9

142073 has 4 divisors (see below), whose sum is σ = 146688. Its totient is φ = 137460.

The previous prime is 142067. The next prime is 142097. The reversal of 142073 is 370241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142073 - 24 = 142057 is a prime.

It is a d-powerful number, because it can be written as 1 + 46 + 0 + 217 + 73 + 38 .

It is a Duffinian number.

It is a plaindrome in base 9.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142073.

It is not an unprimeable number, because it can be changed into a prime (142573) 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, 2261 + ... + 2322.

It is an arithmetic number, because the mean of its divisors is an integer number (36672).

2142073 is an apocalyptic number.

It is an amenable number.

142073 is a deficient number, since it is larger than the sum of its proper divisors (4615).

142073 is an equidigital number, since it uses as much as digits as its factorization.

142073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4614.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 142073 is about 376.9257221257. The cubic root of 142073 is about 52.1799730381.

Adding to 142073 its product of nonzero digits (168), we get a palindrome (142241).

The spelling of 142073 in words is "one hundred forty-two thousand, seventy-three", and thus it is an iban number.

Divisors: 1 31 4583 142073