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143207 = 712017
BaseRepresentation
bin100010111101100111
321021102222
4202331213
514040312
63022555
71134341
oct427547
9237388
10143207
1198659
126aa5b
135024c
143a291
152c672
hex22f67

143207 has 4 divisors (see below), whose sum is σ = 145296. Its totient is φ = 141120.

The previous prime is 143197. The next prime is 143239. The reversal of 143207 is 702341.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143207 - 210 = 142183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143207.

It is not an unprimeable number, because it can be changed into a prime (143257) 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 3 ways as a sum of consecutive naturals, for example, 938 + ... + 1079.

It is an arithmetic number, because the mean of its divisors is an integer number (36324).

2143207 is an apocalyptic number.

143207 is a deficient number, since it is larger than the sum of its proper divisors (2089).

143207 is an equidigital number, since it uses as much as digits as its factorization.

143207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 143207 is about 378.4270074929. The cubic root of 143207 is about 52.3184355429.

Adding to 143207 its reverse (702341), we get a palindrome (845548).

The spelling of 143207 in words is "one hundred forty-three thousand, two hundred seven", and thus it is an iban number.

Divisors: 1 71 2017 143207