Base | Representation |
---|---|
bin | 1010011100110000… |
… | …1010101110011000 |
3 | 21020111001222200021 |
4 | 2213030022232120 |
5 | 21221034002403 |
6 | 1142200320224 |
7 | 126336656020 |
oct | 24714125630 |
9 | 7214058607 |
10 | 2804984728 |
11 | 120a3825a7 |
12 | 663473074 |
13 | 3591840a0 |
14 | 1c8760a80 |
15 | 1163c18bd |
hex | a730ab98 |
2804984728 has 64 divisors (see below), whose sum is σ = 6482064960. Its totient is φ = 1108118016.
The previous prime is 2804984723. The next prime is 2804984731. The reversal of 2804984728 is 8274894082.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (52).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2804984723) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618726 + ... + 623242.
It is an arithmetic number, because the mean of its divisors is an integer number (101282265).
Almost surely, 22804984728 is an apocalyptic number.
2804984728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2804984728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3241032480).
2804984728 is an abundant number, since it is smaller than the sum of its proper divisors (3677080232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2804984728 is a wasteful number, since it uses less digits than its factorization.
2804984728 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5396 (or 5392 counting only the distinct ones).
The product of its (nonzero) digits is 2064384, while the sum is 52.
The square root of 2804984728 is about 52962.1065291025. The cubic root of 2804984728 is about 1410.2956521686.
The spelling of 2804984728 in words is "two billion, eight hundred four million, nine hundred eighty-four thousand, seven hundred twenty-eight".
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