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142303241 = 712004271
BaseRepresentation
bin10000111101101…
…10000000001001
3100220202202100102
420132312000021
5242412200431
622042015145
73345362153
oct1036660011
9326682312
10142303241
1173365593
123b7a74b5
1323635802
1414c83ad3
15c75ddcb
hex87b6009

142303241 has 4 divisors (see below), whose sum is σ = 144307584. Its totient is φ = 140298900.

The previous prime is 142303223. The next prime is 142303247.

142303241 is nontrivially palindromic in base 10.

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 a de Polignac number, because none of the positive numbers 2k-142303241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142303247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002065 + ... + 1002206.

It is an arithmetic number, because the mean of its divisors is an integer number (36076896).

Almost surely, 2142303241 is an apocalyptic number.

It is an amenable number.

142303241 is a deficient number, since it is larger than the sum of its proper divisors (2004343).

142303241 is an equidigital number, since it uses as much as digits as its factorization.

142303241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004342.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 142303241 is about 11929.0922118994. The cubic root of 142303241 is about 522.0814514003.

It can be divided in two parts, 14230 and 3241, that added together give a palindrome (17471).

The spelling of 142303241 in words is "one hundred forty-two million, three hundred three thousand, two hundred forty-one".

Divisors: 1 71 2004271 142303241