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103143 = 334381
BaseRepresentation
bin11001001011100111
312020111010
4121023213
511300033
62113303
7606465
oct311347
9166433
10103143
1170547
124b833
1337c41
1429835
1520863
hex192e7

103143 has 4 divisors (see below), whose sum is σ = 137528. Its totient is φ = 68760.

The previous prime is 103141. The next prime is 103171. The reversal of 103143 is 341301.

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

It is not a de Polignac number, because 103143 - 21 = 103141 is a prime.

It is a D-number.

It is a Duffinian number.

103143 is a lucky 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 103143.

It is not an unprimeable number, because it can be changed into a prime (103141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17188 + ... + 17193.

It is an arithmetic number, because the mean of its divisors is an integer number (34382).

2103143 is an apocalyptic number.

103143 is a deficient number, since it is larger than the sum of its proper divisors (34385).

103143 is an equidigital number, since it uses as much as digits as its factorization.

103143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34384.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 103143 is about 321.1588392058. The cubic root of 103143 is about 46.8971646290.

Adding to 103143 its reverse (341301), we get a palindrome (444444).

The spelling of 103143 in words is "one hundred three thousand, one hundred forty-three", and thus it is an iban number.

Divisors: 1 3 34381 103143