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142104043 = 227626009
BaseRepresentation
bin10000111100001…
…01010111101011
3100220101122002201
420132011113223
5242334312133
622033441031
73343602334
oct1036052753
9326348081
10142104043
1173239964
123b710177
1323595c43
1414c3128b
15c71ed7d
hex87855eb

142104043 has 4 divisors (see below), whose sum is σ = 142730280. Its totient is φ = 141477808.

The previous prime is 142104029. The next prime is 142104049. The reversal of 142104043 is 340401241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142104043 - 29 = 142103531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142104043.

It is not an unprimeable number, because it can be changed into a prime (142104049) 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, 312778 + ... + 313231.

It is an arithmetic number, because the mean of its divisors is an integer number (35682570).

Almost surely, 2142104043 is an apocalyptic number.

142104043 is a deficient number, since it is larger than the sum of its proper divisors (626237).

142104043 is an equidigital number, since it uses as much as digits as its factorization.

142104043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626236.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142104043 is about 11920.7400357528. The cubic root of 142104043 is about 521.8377320872.

Adding to 142104043 its reverse (340401241), we get a palindrome (482505284).

The spelling of 142104043 in words is "one hundred forty-two million, one hundred four thousand, forty-three".

Divisors: 1 227 626009 142104043