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805524969 = 31927135209
BaseRepresentation
bin110000000000110…
…101010111101001
32002010201220112010
4300000311113221
53122203244334
6211533110133
725650564204
oct6000652751
92063656463
10805524969
11383774917
121a5928349
13cab688c2
1478da693b
154aab90e9
hex300355e9

805524969 has 16 divisors (see below), whose sum is σ = 1131195200. Its totient is φ = 508467456.

The previous prime is 805524961. The next prime is 805524983. The reversal of 805524969 is 969425508.

It is not a de Polignac number, because 805524969 - 23 = 805524961 is a prime.

It is a super-2 number, since 2×8055249692 = 1297740951364901922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (805524961) 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 15 ways as a sum of consecutive naturals, for example, 152037 + ... + 157245.

It is an arithmetic number, because the mean of its divisors is an integer number (70699700).

Almost surely, 2805524969 is an apocalyptic number.

It is an amenable number.

805524969 is a deficient number, since it is larger than the sum of its proper divisors (325670231).

805524969 is a wasteful number, since it uses less digits than its factorization.

805524969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7944.

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 805524969 is about 28381.7717734464. The cubic root of 805524969 is about 930.4499187336.

The spelling of 805524969 in words is "eight hundred five million, five hundred twenty-four thousand, nine hundred sixty-nine".

Divisors: 1 3 19 57 2713 5209 8139 15627 51547 98971 154641 296913 14132017 42396051 268508323 805524969