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143143 = 7112132
BaseRepresentation
bin100010111100100111
321021100121
4202330213
514040033
63022411
71134220
oct427447
9237317
10143143
1198600
126aa07
1350200
143a247
152c62d
hex22f27

143143 has 18 divisors (see below), whose sum is σ = 194712. Its totient is φ = 102960.

The previous prime is 143141. The next prime is 143159. The reversal of 143143 is 341341.

It is not a de Polignac number, because 143143 - 21 = 143141 is a prime.

143143 is a lucky number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143141) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11005 + ... + 11017.

2143143 is an apocalyptic number.

143143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

143143 is a deficient number, since it is larger than the sum of its proper divisors (51569).

143143 is a wasteful number, since it uses less digits than its factorization.

143143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55 (or 31 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 143143 is about 378.3424374822. The cubic root of 143143 is about 52.3106405822.

Adding to 143143 its reverse (341341), we get a palindrome (484484).

The spelling of 143143 in words is "one hundred forty-three thousand, one hundred forty-three", and thus it is an iban number.

Divisors: 1 7 11 13 77 91 121 143 169 847 1001 1183 1573 1859 11011 13013 20449 143143