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142343211 = 373649969
BaseRepresentation
bin10000111101111…
…11110000101011
3100220211210011210
420132333300223
5242414440321
622042524203
73345616533
oct1036776053
9326753153
10142343211
117339261a
123b806663
132364aa6a
1414c944c3
15c76ab76
hex87bfc2b

142343211 has 8 divisors (see below), whose sum is σ = 192391120. Its totient is φ = 93595392.

The previous prime is 142343183. The next prime is 142343221. The reversal of 142343211 is 112343241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142343211 - 26 = 142343147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142343221) 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 7 ways as a sum of consecutive naturals, for example, 324766 + ... + 325203.

It is an arithmetic number, because the mean of its divisors is an integer number (24048890).

Almost surely, 2142343211 is an apocalyptic number.

142343211 is a deficient number, since it is larger than the sum of its proper divisors (50047909).

142343211 is an equidigital number, since it uses as much as digits as its factorization.

142343211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650045.

The product of its digits is 576, while the sum is 21.

The square root of 142343211 is about 11930.7674103555. The cubic root of 142343211 is about 522.1303274063.

Adding to 142343211 its reverse (112343241), we get a palindrome (254686452).

The spelling of 142343211 in words is "one hundred forty-two million, three hundred forty-three thousand, two hundred eleven".

Divisors: 1 3 73 219 649969 1949907 47447737 142343211