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28080335 = 512744221
BaseRepresentation
bin110101100011…
…1100011001111
31221211121222102
41223013203033
524142032320
62441505315
7460451603
oct153074317
957747872
1028080335
111493a198
1294a223b
135a822aa
143a2d503
1526ea175
hex1ac78cf

28080335 has 8 divisors (see below), whose sum is σ = 33962496. Its totient is φ = 22286880.

The previous prime is 28080317. The next prime is 28080343. The reversal of 28080335 is 53308082.

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

It is not a de Polignac number, because 28080335 - 212 = 28076239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28080298 and 28080307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21476 + ... + 22745.

It is an arithmetic number, because the mean of its divisors is an integer number (4245312).

Almost surely, 228080335 is an apocalyptic number.

28080335 is a deficient number, since it is larger than the sum of its proper divisors (5882161).

28080335 is a wasteful number, since it uses less digits than its factorization.

28080335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44353.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 28080335 is about 5299.0881291030. The cubic root of 28080335 is about 303.9490298606.

The spelling of 28080335 in words is "twenty-eight million, eighty thousand, three hundred thirty-five".

Divisors: 1 5 127 635 44221 221105 5616067 28080335