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126103 = 196637
BaseRepresentation
bin11110110010010111
320101222111
4132302113
513013403
62411451
71033435
oct366227
9211874
10126103
118681a
1260b87
1345523
1433d55
152756d
hex1ec97

126103 has 4 divisors (see below), whose sum is σ = 132760. Its totient is φ = 119448.

The previous prime is 126097. The next prime is 126107. The reversal of 126103 is 301621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301621 = 893389.

It is a cyclic number.

It is not a de Polignac number, because 126103 - 29 = 125591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126107) 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, 3300 + ... + 3337.

It is an arithmetic number, because the mean of its divisors is an integer number (33190).

2126103 is an apocalyptic number.

126103 is a deficient number, since it is larger than the sum of its proper divisors (6657).

126103 is an equidigital number, since it uses as much as digits as its factorization.

126103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6656.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 126103 is about 355.1098421615. The cubic root of 126103 is about 50.1466362027.

Adding to 126103 its reverse (301621), we get a palindrome (427724).

The spelling of 126103 in words is "one hundred twenty-six thousand, one hundred three".

Divisors: 1 19 6637 126103