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28536127 = 54152747
BaseRepresentation
bin110110011011…
…0110100111111
31222200210012121
41230312310333
524301124002
62455343411
7464360464
oct154666477
958623177
1028536127
1115120684
129681b67
135bb18a9
143b0b66b
15278a237
hex1b36d3f

28536127 has 4 divisors (see below), whose sum is σ = 28589416. Its totient is φ = 28482840.

The previous prime is 28536121. The next prime is 28536161. The reversal of 28536127 is 72163582.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28536127 - 219 = 28011839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28536092 and 28536101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28536121) 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, 25833 + ... + 26914.

It is an arithmetic number, because the mean of its divisors is an integer number (7147354).

Almost surely, 228536127 is an apocalyptic number.

28536127 is a deficient number, since it is larger than the sum of its proper divisors (53289).

28536127 is an equidigital number, since it uses as much as digits as its factorization.

28536127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53288.

The product of its digits is 20160, while the sum is 34.

The square root of 28536127 is about 5341.9216579804. The cubic root of 28536127 is about 305.5847493771.

The spelling of 28536127 in words is "twenty-eight million, five hundred thirty-six thousand, one hundred twenty-seven".

Divisors: 1 541 52747 28536127