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28896033 = 318895099
BaseRepresentation
bin110111000111…
…0101100100001
32000101001220110
41232032230201
524344133113
62511201533
7500416665
oct156165441
960331813
1028896033
1115347021
1298162a9
135ca965a
143ba28a5
15280bbc3
hex1b8eb21

28896033 has 8 divisors (see below), whose sum is σ = 38556000. Its totient is φ = 19250048.

The previous prime is 28896029. The next prime is 28896037. The reversal of 28896033 is 33069882.

It is an interprime number because it is at equal distance from previous prime (28896029) and next prime (28896037).

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 28896033 - 22 = 28896029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28895982 and 28896000.

It is not an unprimeable number, because it can be changed into a prime (28896037) 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, 3118 + ... + 8216.

It is an arithmetic number, because the mean of its divisors is an integer number (4819500).

Almost surely, 228896033 is an apocalyptic number.

It is an amenable number.

28896033 is a deficient number, since it is larger than the sum of its proper divisors (9659967).

28896033 is a wasteful number, since it uses less digits than its factorization.

28896033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6991.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 28896033 is about 5375.5030462274. The cubic root of 28896033 is about 306.8640940178.

Subtracting 28896033 from its reverse (33069882), we obtain a square (4173849 = 20432).

The spelling of 28896033 in words is "twenty-eight million, eight hundred ninety-six thousand, thirty-three".

Divisors: 1 3 1889 5099 5667 15297 9632011 28896033