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143198001 = 3230751827
BaseRepresentation
bin10001000100100…
…00011100110001
3100222110012201200
420202100130301
5243124314001
622113121413
73356106612
oct1042203461
9328405650
10143198001
1173916861
123bb59269
1323889b5b
1415037c09
15c889086
hex8890731

143198001 has 12 divisors (see below), whose sum is σ = 207519312. Its totient is φ = 95152536.

The previous prime is 143197963. The next prime is 143198047. The reversal of 143198001 is 100891341.

It is not a de Polignac number, because 143198001 - 26 = 143197937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143198071) 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, 23151 + ... + 28676.

It is an arithmetic number, because the mean of its divisors is an integer number (17293276).

Almost surely, 2143198001 is an apocalyptic number.

It is an amenable number.

143198001 is a deficient number, since it is larger than the sum of its proper divisors (64321311).

143198001 is a wasteful number, since it uses less digits than its factorization.

143198001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52140 (or 52137 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 143198001 is about 11966.5367170289. The cubic root of 143198001 is about 523.1733963867.

The spelling of 143198001 in words is "one hundred forty-three million, one hundred ninety-eight thousand, one".

Divisors: 1 3 9 307 921 2763 51827 155481 466443 15910889 47732667 143198001