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28486853 = 89331967
BaseRepresentation
bin110110010101…
…0110011000101
31222121021121122
41230222303011
524243034403
62454323325
7464064023
oct154526305
958537548
1028486853
111509765a
129659545
135b95335
143ad7713
15277a838
hex1b2acc5

28486853 has 8 divisors (see below), whose sum is σ = 28923840. Its totient is φ = 28052640.

The previous prime is 28486819. The next prime is 28486877. The reversal of 28486853 is 35868482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28486853 - 216 = 28421317 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 (28486153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28976 + ... + 29942.

It is an arithmetic number, because the mean of its divisors is an integer number (3615480).

Almost surely, 228486853 is an apocalyptic number.

It is an amenable number.

28486853 is a deficient number, since it is larger than the sum of its proper divisors (436987).

28486853 is an equidigital number, since it uses as much as digits as its factorization.

28486853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387.

The product of its digits is 368640, while the sum is 44.

The square root of 28486853 is about 5337.3076546139. The cubic root of 28486853 is about 305.4087612585.

The spelling of 28486853 in words is "twenty-eight million, four hundred eighty-six thousand, eight hundred fifty-three".

Divisors: 1 89 331 967 29459 86063 320077 28486853