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28677103 = 721323463
BaseRepresentation
bin110110101100…
…1001111101111
31222221221120221
41231121033233
524320131403
62502352211
7465515500
oct155311757
958857527
1028677103
1115207594
12972b667
135c30b00
143b46ba7
1527b6dbd
hex1b593ef

28677103 has 18 divisors (see below), whose sum is σ = 36132984. Its totient is φ = 22683024.

The previous prime is 28677091. The next prime is 28677107. The reversal of 28677103 is 30177682.

It is not a de Polignac number, because 28677103 - 217 = 28546031 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 (28677107) 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 17 ways as a sum of consecutive naturals, for example, 6550 + ... + 10012.

It is an arithmetic number, because the mean of its divisors is an integer number (2007388).

Almost surely, 228677103 is an apocalyptic number.

28677103 is a deficient number, since it is larger than the sum of its proper divisors (7455881).

28677103 is a wasteful number, since it uses less digits than its factorization.

28677103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3503 (or 3483 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 28677103 is about 5355.1006526488. The cubic root of 28677103 is about 306.0871460679.

The spelling of 28677103 in words is "twenty-eight million, six hundred seventy-seven thousand, one hundred three".

Divisors: 1 7 13 49 91 169 637 1183 3463 8281 24241 45019 169687 315133 585247 2205931 4096729 28677103