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4128103 = 7284247
BaseRepresentation
bin1111101111110101100111
321202201200201
433233311213
52024044403
6224251331
750042200
oct17576547
97681621
104128103
11236a561
121470b47
13b16c85
147965a7
1556821d
hex3efd67

4128103 has 6 divisors (see below), whose sum is σ = 4802136. Its totient is φ = 3538332.

The previous prime is 4128101. The next prime is 4128107. The reversal of 4128103 is 3018214.

It is not a de Polignac number, because 4128103 - 21 = 4128101 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 (4128101) 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 5 ways as a sum of consecutive naturals, for example, 42075 + ... + 42172.

It is an arithmetic number, because the mean of its divisors is an integer number (800356).

Almost surely, 24128103 is an apocalyptic number.

4128103 is a deficient number, since it is larger than the sum of its proper divisors (674033).

4128103 is an equidigital number, since it uses as much as digits as its factorization.

4128103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84261 (or 84254 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 4128103 is about 2031.7733633454. The cubic root of 4128103 is about 160.4169204771.

It can be divided in two parts, 412 and 8103, that added together give a triangular number (8515 = T130).

The spelling of 4128103 in words is "four million, one hundred twenty-eight thousand, one hundred three".

Divisors: 1 7 49 84247 589729 4128103