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143243204 = 221319144983
BaseRepresentation
bin10001000100110…
…11011111000100
3100222112111201212
420202123133010
5243132240304
622114110552
73356355446
oct1042333704
9328474655
10143243204
1173947815
123bb7b458
13238a45c0
141504a496
15c89766e
hex889b7c4

143243204 has 24 divisors (see below), whose sum is σ = 284168640. Its totient is φ = 62632224.

The previous prime is 143243203. The next prime is 143243239. The reversal of 143243204 is 402342341.

It is a self number, because there is not a number n which added to its sum of digits gives 143243204.

It is not an unprimeable number, because it can be changed into a prime (143243201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71504 + ... + 73479.

It is an arithmetic number, because the mean of its divisors is an integer number (11840360).

Almost surely, 2143243204 is an apocalyptic number.

It is an amenable number.

143243204 is a deficient number, since it is larger than the sum of its proper divisors (140925436).

143243204 is a wasteful number, since it uses less digits than its factorization.

143243204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145019 (or 145017 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 143243204 is about 11968.4252932456. The cubic root of 143243204 is about 523.2284402627.

Adding to 143243204 its reverse (402342341), we get a palindrome (545585545).

The spelling of 143243204 in words is "one hundred forty-three million, two hundred forty-three thousand, two hundred four".

Divisors: 1 2 4 13 19 26 38 52 76 247 494 988 144983 289966 579932 1884779 2754677 3769558 5509354 7539116 11018708 35810801 71621602 143243204