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805059087 = 37231666789
BaseRepresentation
bin101111111111000…
…011101000001111
32002002212020110020
4233333003220033
53122043342322
6211515113223
725643614020
oct5777035017
92062766406
10805059087
11383486898
121a5742813
13caa34831
1478cc4c47
154aa2605c
hex2ffc3a0f

805059087 has 16 divisors (see below), whose sum is σ = 1280094720. Its totient is φ = 440032032.

The previous prime is 805059049. The next prime is 805059097. The reversal of 805059087 is 780950508.

It is not a de Polignac number, because 805059087 - 27 = 805058959 is a prime.

It is a super-2 number, since 2×8050590872 = 1296240267122547138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805059007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832912 + ... + 833877.

It is an arithmetic number, because the mean of its divisors is an integer number (80005920).

Almost surely, 2805059087 is an apocalyptic number.

805059087 is a deficient number, since it is larger than the sum of its proper divisors (475035633).

805059087 is a wasteful number, since it uses less digits than its factorization.

805059087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666822.

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 805059087 is about 28373.5631706700. The cubic root of 805059087 is about 930.2705063497.

The spelling of 805059087 in words is "eight hundred five million, fifty-nine thousand, eighty-seven".

Divisors: 1 3 7 21 23 69 161 483 1666789 5000367 11667523 35002569 38336147 115008441 268353029 805059087