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804064143 = 33140921139
BaseRepresentation
bin101111111011010…
…000101110001111
32002000222200122110
4233323100232033
53121320023033
6211441515103
725632301221
oct5773205617
92060880573
10804064143
11382967323
121a5342a93
13ca7769cc
1478b06411
154a8cb363
hex2fed0b8f

804064143 has 16 divisors (see below), whose sum is σ = 1109427200. Its totient is φ = 517458240.

The previous prime is 804064141. The next prime is 804064159. The reversal of 804064143 is 341460408.

It is not a de Polignac number, because 804064143 - 21 = 804064141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 804064143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804064141) 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, 27468 + ... + 48606.

It is an arithmetic number, because the mean of its divisors is an integer number (69339200).

Almost surely, 2804064143 is an apocalyptic number.

804064143 is a deficient number, since it is larger than the sum of its proper divisors (305363057).

804064143 is a wasteful number, since it uses less digits than its factorization.

804064143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21582.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 804064143 is about 28356.0248095533. The cubic root of 804064143 is about 929.8871189158.

The spelling of 804064143 in words is "eight hundred four million, sixty-four thousand, one hundred forty-three".

Divisors: 1 3 31 93 409 1227 12679 21139 38037 63417 655309 1965927 8645851 25937553 268021381 804064143