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804005994 = 231112181909
BaseRepresentation
bin101111111011000…
…010100001101010
32002000212201212210
4233323002201222
53121311142434
6211440345550
725631636541
oct5773024152
92060781783
10804005994
11382927670
121a53152b6
13ca7563bc
1478acd158
154a8b8ee9
hex2fec286a

804005994 has 16 divisors (see below), whose sum is σ = 1754195040. Its totient is φ = 243638160.

The previous prime is 804005981. The next prime is 804005999. The reversal of 804005994 is 499500408.

804005994 is a modest number, since divided by 5994 gives 804 as remainder.

It is not an unprimeable number, because it can be changed into a prime (804005999) 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, 6090889 + ... + 6091020.

It is an arithmetic number, because the mean of its divisors is an integer number (109637190).

Almost surely, 2804005994 is an apocalyptic number.

804005994 is an abundant number, since it is smaller than the sum of its proper divisors (950189046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

804005994 is a wasteful number, since it uses less digits than its factorization.

804005994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12181925.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 804005994 is about 28354.9994533592. Note that the first 3 decimals coincide. The cubic root of 804005994 is about 929.8647022508.

The spelling of 804005994 in words is "eight hundred four million, five thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 11 22 33 66 12181909 24363818 36545727 73091454 134000999 268001998 402002997 804005994