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143524242 = 23227412909
BaseRepresentation
bin10001000111000…
…00000110010010
3101000001210020200
420203200012102
5243220233432
622124120030
73361636011
oct1043400622
9330053220
10143524242
1174019984
1240096016
13239724b4
14150c0a78
15c900a7c
hex88e0192

143524242 has 24 divisors (see below), whose sum is σ = 311189580. Its totient is φ = 47807520.

The previous prime is 143524237. The next prime is 143524243. The reversal of 143524242 is 242425341.

It can be written as a sum of positive squares in 2 ways, for example, as 142062561 + 1461681 = 11919^2 + 1209^2 .

It is not an unprimeable number, because it can be changed into a prime (143524243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47884 + ... + 50792.

Almost surely, 2143524242 is an apocalyptic number.

143524242 is an abundant number, since it is smaller than the sum of its proper divisors (167665338).

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

143524242 is a wasteful number, since it uses less digits than its factorization.

143524242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5658 (or 5655 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 143524242 is about 11980.1603495112. The cubic root of 143524242 is about 523.5704018310.

Adding to 143524242 its reverse (242425341), we get a palindrome (385949583).

The spelling of 143524242 in words is "one hundred forty-three million, five hundred twenty-four thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 2741 2909 5482 5818 8223 8727 16446 17454 24669 26181 49338 52362 7973569 15947138 23920707 47841414 71762121 143524242