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143200161 = 32131319343
BaseRepresentation
bin10001000100100…
…00111110100001
3100222110022200200
420202100332201
5243124401121
622113135413
73356116116
oct1042207641
9328408620
10143200161
1173918445
123bb5a569
132388ab30
141503890d
15c889a26
hex8890fa1

143200161 has 24 divisors (see below), whose sum is σ = 224480256. Its totient is φ = 87441120.

The previous prime is 143200153. The next prime is 143200177. The reversal of 143200161 is 161002341.

It is a happy number.

It is not a de Polignac number, because 143200161 - 23 = 143200153 is a prime.

It is a super-2 number, since 2×1432001612 = 41012572220851842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143200111) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 10656 + ... + 19998.

It is an arithmetic number, because the mean of its divisors is an integer number (9353344).

Almost surely, 2143200161 is an apocalyptic number.

It is an amenable number.

143200161 is a deficient number, since it is larger than the sum of its proper divisors (81280095).

143200161 is a wasteful number, since it uses less digits than its factorization.

143200161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9493 (or 9490 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 143200161 is about 11966.6269683650. The cubic root of 143200161 is about 523.1760268909.

The spelling of 143200161 in words is "one hundred forty-three million, two hundred thousand, one hundred sixty-one".

Divisors: 1 3 9 13 39 117 131 393 1179 1703 5109 9343 15327 28029 84087 121459 364377 1093131 1223933 3671799 11015397 15911129 47733387 143200161