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142437301 = 173823337
BaseRepresentation
bin10000111110101…
…10101110110101
3100221000120020121
420133112232311
5242430443201
622044531541
73346461046
oct1037265665
9327016217
10142437301
1173447286
123b850bb1
1323681836
1414cba8cd
15c7889a1
hex87d6bb5

142437301 has 4 divisors (see below), whose sum is σ = 143260812. Its totient is φ = 141613792.

The previous prime is 142437283. The next prime is 142437349. The reversal of 142437301 is 103734241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 110796676 + 31640625 = 10526^2 + 5625^2 .

It is a cyclic number.

It is not a de Polignac number, because 142437301 - 27 = 142437173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142477301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411496 + ... + 411841.

It is an arithmetic number, because the mean of its divisors is an integer number (35815203).

Almost surely, 2142437301 is an apocalyptic number.

It is an amenable number.

142437301 is a deficient number, since it is larger than the sum of its proper divisors (823511).

142437301 is an equidigital number, since it uses as much as digits as its factorization.

142437301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823510.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 142437301 is about 11934.7099252558. The cubic root of 142437301 is about 522.2453461736.

The spelling of 142437301 in words is "one hundred forty-two million, four hundred thirty-seven thousand, three hundred one".

Divisors: 1 173 823337 142437301