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804008161 = 11193846929
BaseRepresentation
bin101111111011000…
…011000011100001
32002000212211212001
4233323003003201
53121311230121
6211440404001
725631646055
oct5773030341
92060784761
10804008161
11382929260
121a5316601
13ca757398
1478acdc65
154a8b9991
hex2fec30e1

804008161 has 8 divisors (see below), whose sum is σ = 923263200. Its totient is φ = 692447040.

The previous prime is 804008141. The next prime is 804008239. The reversal of 804008161 is 161800408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 804008161 - 213 = 803999969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (804008131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923256 + ... + 1923673.

It is an arithmetic number, because the mean of its divisors is an integer number (115407900).

Almost surely, 2804008161 is an apocalyptic number.

It is an amenable number.

804008161 is a deficient number, since it is larger than the sum of its proper divisors (119255039).

804008161 is a wasteful number, since it uses less digits than its factorization.

804008161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846959.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 804008161 is about 28355.0376652897. The cubic root of 804008161 is about 929.8655376571.

Adding to 804008161 its reverse (161800408), we get a palindrome (965808569).

The spelling of 804008161 in words is "eight hundred four million, eight thousand, one hundred sixty-one".

Divisors: 1 11 19 209 3846929 42316219 73091651 804008161