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142337243 = 178372779
BaseRepresentation
bin10000111101111…
…10010011011011
3100220211110222202
420132332103123
5242414242433
622042440415
73345563246
oct1036762333
9326743882
10142337243
1173389094
123b80310b
1323648129
1414c9225d
15c768ee8
hex87be4db

142337243 has 4 divisors (see below), whose sum is σ = 150710040. Its totient is φ = 133964448.

The previous prime is 142337231. The next prime is 142337263. The reversal of 142337243 is 342733241.

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 142337243 - 210 = 142336219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142337203) 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, 4186373 + ... + 4186406.

It is an arithmetic number, because the mean of its divisors is an integer number (37677510).

Almost surely, 2142337243 is an apocalyptic number.

142337243 is a deficient number, since it is larger than the sum of its proper divisors (8372797).

142337243 is an equidigital number, since it uses as much as digits as its factorization.

142337243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372796.

The product of its digits is 12096, while the sum is 29.

The square root of 142337243 is about 11930.5172980890. The cubic root of 142337243 is about 522.1230302140.

The spelling of 142337243 in words is "one hundred forty-two million, three hundred thirty-seven thousand, two hundred forty-three".

Divisors: 1 17 8372779 142337243