Base | Representation |
---|---|
bin | 101111111100111… |
… | …001111000100000 |
3 | 2002001210120111200 |
4 | 233330321320200 |
5 | 3121422314010 |
6 | 211455041200 |
7 | 25636044060 |
oct | 5774717040 |
9 | 2061716450 |
10 | 804494880 |
11 | 383130a02 |
12 | 1a5510200 |
13 | ca897a97 |
14 | 78bb93a0 |
15 | 4a963cc0 |
hex | 2ff39e20 |
804494880 has 144 divisors (see below), whose sum is σ = 3137569344. Its totient is φ = 183882240.
The previous prime is 804494879. The next prime is 804494881. The reversal of 804494880 is 88494408.
804494880 is a `hidden beast` number, since 80 + 4 + 494 + 8 + 80 = 666.
It is an interprime number because it is at equal distance from previous prime (804494879) and next prime (804494881).
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (804494881) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29826 + ... + 49985.
It is an arithmetic number, because the mean of its divisors is an integer number (21788676).
Almost surely, 2804494880 is an apocalyptic number.
804494880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
804494880 is an abundant number, since it is smaller than the sum of its proper divisors (2333074464).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
804494880 is a wasteful number, since it uses less digits than its factorization.
804494880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 79839 (or 79828 counting only the distinct ones).
The product of its (nonzero) digits is 294912, while the sum is 45.
The square root of 804494880 is about 28363.6189510436. The cubic root of 804494880 is about 930.0531360552.
The spelling of 804494880 in words is "eight hundred four million, four hundred ninety-four thousand, eight hundred eighty".
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