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142102343 = 149953707
BaseRepresentation
bin10000111100001…
…00111101000111
3100220101112202202
420132010331013
5242334233333
622033425115
73343564355
oct1036047507
9326345682
10142102343
1173238659
123b70b19b
1323595236
1414c307d5
15c71e5e8
hex8784f47

142102343 has 4 divisors (see below), whose sum is σ = 143056200. Its totient is φ = 141148488.

The previous prime is 142102333. The next prime is 142102379. The reversal of 142102343 is 343201241.

142102343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 142102343 - 24 = 142102327 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 (142102333) 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, 476705 + ... + 477002.

It is an arithmetic number, because the mean of its divisors is an integer number (35764050).

Almost surely, 2142102343 is an apocalyptic number.

142102343 is a deficient number, since it is larger than the sum of its proper divisors (953857).

142102343 is an equidigital number, since it uses as much as digits as its factorization.

142102343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953856.

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

The square root of 142102343 is about 11920.6687312415. The cubic root of 142102343 is about 521.8356511525.

Adding to 142102343 its reverse (343201241), we get a palindrome (485303584).

The spelling of 142102343 in words is "one hundred forty-two million, one hundred two thousand, three hundred forty-three".

Divisors: 1 149 953707 142102343