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28114255 = 513432527
BaseRepresentation
bin110101100111…
…1110101001111
31221220100111201
41223033311033
524144124010
62442330331
7460652521
oct153176517
957810451
1028114255
1114962724
1294b99a7
135a94870
143a3ba11
15270523a
hex1acfd4f

28114255 has 8 divisors (see below), whose sum is σ = 36332352. Its totient is φ = 20761248.

The previous prime is 28114231. The next prime is 28114291. The reversal of 28114255 is 55241182.

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 28114255 - 217 = 27983183 is a prime.

It is a super-2 number, since 2×281142552 = 1580822668410050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 216199 + ... + 216328.

It is an arithmetic number, because the mean of its divisors is an integer number (4541544).

Almost surely, 228114255 is an apocalyptic number.

28114255 is a deficient number, since it is larger than the sum of its proper divisors (8218097).

28114255 is a wasteful number, since it uses less digits than its factorization.

28114255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432545.

The product of its digits is 3200, while the sum is 28.

The square root of 28114255 is about 5302.2877138081. The cubic root of 28114255 is about 304.0713669877.

The spelling of 28114255 in words is "twenty-eight million, one hundred fourteen thousand, two hundred fifty-five".

Divisors: 1 5 13 65 432527 2162635 5622851 28114255