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103103423 = 372786579
BaseRepresentation
bin1100010010100…
…11101110111111
321012000012022022
412021103232333
5202343302143
614121510355
72361236033
oct611235677
9235005268
10103103423
1153221145
122a6423bb
131848c257
14d99c1c3
1590b9268
hex6253bbf

103103423 has 4 divisors (see below), whose sum is σ = 105890040. Its totient is φ = 100316808.

The previous prime is 103103401. The next prime is 103103437. The reversal of 103103423 is 324301301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324301301 = 427175931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-103103423 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 (103105423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393253 + ... + 1393326.

It is an arithmetic number, because the mean of its divisors is an integer number (26472510).

Almost surely, 2103103423 is an apocalyptic number.

103103423 is a deficient number, since it is larger than the sum of its proper divisors (2786617).

103103423 is an equidigital number, since it uses as much as digits as its factorization.

103103423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786616.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 103103423 is about 10153.9855721780. The cubic root of 103103423 is about 468.9116555805.

Adding to 103103423 its reverse (324301301), we get a palindrome (427404724).

The spelling of 103103423 in words is "one hundred three million, one hundred three thousand, four hundred twenty-three".

Divisors: 1 37 2786579 103103423