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28080514 = 2711182341
BaseRepresentation
bin110101100011…
…1100110000010
31221211122020001
41223013212002
524142034024
62441510214
7460452250
oct153074602
957748201
1028080514
111493a340
1294a236a
135a823b7
143a2d5d0
1526ea244
hex1ac7982

28080514 has 16 divisors (see below), whose sum is σ = 52514496. Its totient is φ = 10940400.

The previous prime is 28080511. The next prime is 28080517. The reversal of 28080514 is 41508082.

It is an interprime number because it is at equal distance from previous prime (28080511) and next prime (28080517).

It is not an unprimeable number, because it can be changed into a prime (28080511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91017 + ... + 91324.

It is an arithmetic number, because the mean of its divisors is an integer number (3282156).

Almost surely, 228080514 is an apocalyptic number.

28080514 is a deficient number, since it is larger than the sum of its proper divisors (24433982).

28080514 is a wasteful number, since it uses less digits than its factorization.

28080514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182361.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 28080514 is about 5299.1050187744. The cubic root of 28080514 is about 303.9496757072.

Adding to 28080514 its reverse (41508082), we get a palindrome (69588596).

The spelling of 28080514 in words is "twenty-eight million, eighty thousand, five hundred fourteen".

Divisors: 1 2 7 11 14 22 77 154 182341 364682 1276387 2005751 2552774 4011502 14040257 28080514