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28033675 = 521121347
BaseRepresentation
bin110101011110…
…0001010001011
31221202020222021
41222330022023
524134034200
62440505311
7460165555
oct152741213
957666867
1028033675
111490812a
12947b237
135a66c97
143a1a4d5
1526db41a
hex1abc28b

28033675 has 6 divisors (see below), whose sum is σ = 34761788. Its totient is φ = 22426920.

The previous prime is 28033657. The next prime is 28033693. The reversal of 28033675 is 57633082.

It is an interprime number because it is at equal distance from previous prime (28033657) and next prime (28033693).

It is not a de Polignac number, because 28033675 - 27 = 28033547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28033675.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 560649 + ... + 560698.

Almost surely, 228033675 is an apocalyptic number.

28033675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28033675 is a deficient number, since it is larger than the sum of its proper divisors (6728113).

28033675 is a wasteful number, since it uses less digits than its factorization.

28033675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121357 (or 1121352 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 28033675 is about 5294.6836543839. The cubic root of 28033675 is about 303.7805831005.

The spelling of 28033675 in words is "twenty-eight million, thirty-three thousand, six hundred seventy-five".

Divisors: 1 5 25 1121347 5606735 28033675