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143808668 = 2235952167
BaseRepresentation
bin10001001001001…
…01100010011100
3101000121020101222
420210211202130
5243303334133
622134152512
73364232153
oct1044454234
9330536358
10143808668
11741a3643
12401b2738
1323a41ab3
141515659a
15c959e98
hex892589c

143808668 has 6 divisors (see below), whose sum is σ = 251665176. Its totient is φ = 71904332.

The previous prime is 143808647. The next prime is 143808671. The reversal of 143808668 is 866808341.

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 as a sum of consecutive naturals, namely, 17976080 + ... + 17976087.

It is an arithmetic number, because the mean of its divisors is an integer number (41944196).

Almost surely, 2143808668 is an apocalyptic number.

It is an amenable number.

143808668 is a deficient number, since it is larger than the sum of its proper divisors (107856508).

143808668 is a wasteful number, since it uses less digits than its factorization.

143808668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35952171 (or 35952169 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 143808668 is about 11992.0251834292. The cubic root of 143808668 is about 523.9160316475.

The spelling of 143808668 in words is "one hundred forty-three million, eight hundred eight thousand, six hundred sixty-eight".

Divisors: 1 2 4 35952167 71904334 143808668