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10828809 = 3544563
BaseRepresentation
bin101001010011…
…110000001001
3202101011100000
4221103300021
510233010214
61024033213
7161020605
oct51236011
922334300
1010828809
116126932
123762809
132321ba4
14161c505
15e3d809
hexa53c09

10828809 has 12 divisors (see below), whose sum is σ = 16221296. Its totient is φ = 7219044.

The previous prime is 10828793. The next prime is 10828871. The reversal of 10828809 is 90882801.

It is not a de Polignac number, because 10828809 - 24 = 10828793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10820809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22039 + ... + 22524.

Almost surely, 210828809 is an apocalyptic number.

It is an amenable number.

10828809 is a deficient number, since it is larger than the sum of its proper divisors (5392487).

10828809 is an frugal number, since it uses more digits than its factorization.

10828809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44578 (or 44566 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 10828809 is about 3290.7155756765. The cubic root of 10828809 is about 221.2382584978.

The spelling of 10828809 in words is "ten million, eight hundred twenty-eight thousand, eight hundred nine".

Divisors: 1 3 9 27 81 243 44563 133689 401067 1203201 3609603 10828809