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143142342 = 2377346687
BaseRepresentation
bin10001000100000…
…10110111000110
3100222100101101020
420202002313012
5243121023332
622112012010
73355455420
oct1042026706
9328311336
10143142342
1173888a62
123bb31006
132386a715
1415021810
15c87782c
hex8882dc6

143142342 has 32 divisors (see below), whose sum is σ = 331671552. Its totient is φ = 40336704.

The previous prime is 143142331. The next prime is 143142359. The reversal of 143142342 is 243241341.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20278 + ... + 26409.

It is an arithmetic number, because the mean of its divisors is an integer number (10364736).

Almost surely, 2143142342 is an apocalyptic number.

143142342 is an abundant number, since it is smaller than the sum of its proper divisors (188529210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143142342 is a wasteful number, since it uses less digits than its factorization.

143142342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46772.

The product of its digits is 2304, while the sum is 24.

The square root of 143142342 is about 11964.2108807894. The cubic root of 143142342 is about 523.1056042820.

Adding to 143142342 its reverse (243241341), we get a palindrome (386383683).

The spelling of 143142342 in words is "one hundred forty-three million, one hundred forty-two thousand, three hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 73 146 219 438 511 1022 1533 3066 46687 93374 140061 280122 326809 653618 980427 1960854 3408151 6816302 10224453 20448906 23857057 47714114 71571171 143142342