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28996782 = 234832797
BaseRepresentation
bin110111010011…
…1010010101110
32000120012002220
41232213102232
524410344112
62513300210
7501316503
oct156472256
960505086
1028996782
1115405791
129864666
136013479
143bcb4aa
15282b98c
hex1ba74ae

28996782 has 8 divisors (see below), whose sum is σ = 57993576. Its totient is φ = 9665592.

The previous prime is 28996771. The next prime is 28996783. The reversal of 28996782 is 28769982.

It is a happy number.

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

28996782 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28996783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2416393 + ... + 2416404.

It is an arithmetic number, because the mean of its divisors is an integer number (7249197).

Almost surely, 228996782 is an apocalyptic number.

28996782 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28996782 is a wasteful number, since it uses less digits than its factorization.

28996782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832802.

The product of its digits is 870912, while the sum is 51.

The square root of 28996782 is about 5384.8660150462. The cubic root of 28996782 is about 307.2203181074.

The spelling of 28996782 in words is "twenty-eight million, nine hundred ninety-six thousand, seven hundred eighty-two".

Divisors: 1 2 3 6 4832797 9665594 14498391 28996782