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805168053 = 33311138513
BaseRepresentation
bin101111111111011…
…110001110110101
32002010001202221000
4233333132032311
53122110334203
6211521313513
725644546504
oct5777361665
92063052830
10805168053
11383550748
121a5795899
13caa72301
1478d1283b
154aa484a3
hex2ffde3b5

805168053 has 32 divisors (see below), whose sum is σ = 1242362880. Its totient is φ = 514805760.

The previous prime is 805168033. The next prime is 805168057. The reversal of 805168053 is 350861508.

It is not a de Polignac number, because 805168053 - 210 = 805167029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 805167999 and 805168017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805168057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90325 + ... + 98837.

It is an arithmetic number, because the mean of its divisors is an integer number (38823840).

Almost surely, 2805168053 is an apocalyptic number.

It is an amenable number.

805168053 is a deficient number, since it is larger than the sum of its proper divisors (437194827).

805168053 is a wasteful number, since it uses less digits than its factorization.

805168053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8666 (or 8660 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 805168053 is about 28375.4833086593. The cubic root of 805168053 is about 930.3124756431.

The spelling of 805168053 in words is "eight hundred five million, one hundred sixty-eight thousand, fifty-three".

Divisors: 1 3 9 27 31 93 113 279 339 837 1017 3051 3503 8513 10509 25539 31527 76617 94581 229851 263903 791709 961969 2375127 2885907 7125381 8657721 25973163 29821039 89463117 268389351 805168053