28734721 is an odd 8-digits composite number following 28734720
and preceding 28734722 . In scientific notation, it is written as 2.8734721 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 28263600 positive integers (up to 28734721) that are relatively prime to 28734721.
28734721 has 4 divisors, whose sum is 29205844
The reverse of 28734721 is 12743782
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million seven hundred thirty-four thousand seven hundred twenty-one
Scientific notation
2.8734721 × 10^7
Engineering notation
2.8734721 × 10^6
Prime Factorization
61 × 471061
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28734721
Product of the distinct prime numbers
The prime factorization of 28734721 is 61 × 471061.
Since it has a total of 2 prime factors.
7 , 3 , 50 , 87 , 826 , 644 , 1263 , 3842 , 23732 , 62722 , 130275 , 961045 , 4626651 , 3710115 , 48051307 , 9578914 , 590215965 , 516577105 , 2014029061 , 6693010592
n×2
57469442
n×3
86204163
n×4
114938884
n×5
143673605
n÷2
14367360.5
n÷3
9578240.3333333
n÷3
7183680.25
n÷5
5746944.2
n2
825684190947841
n3
2.3725804860997E+22
n4
6.8175438318119E+29
n5
1.9590021991239E+37
2 √n
5360.4776839383
3 √n
306.29200556682
4 √n
73.215283130903
5 √n
31.022828853459
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28734720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28734721 can be divided by 4 positive divisors.
The sum of these divisors (counting 28734721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101100111010100000001
3
Ternary
2000001212121221
4
Quaternary
1231213110001
5
Quinary
24324002341
6
Senary
2503515041
8
Octal
155472401
10
Decimal
28734721
12
Duodecimal
9758a81
16
Hexadecimal
1b67501
20
Vigesimal
8jbgg1
36
Base36
h3vup
md5
f5c2c74c615b56e070534a9c066a4ea2
sha1
bc0aa3625e480ae60f20e80c8c0a6a79f6a1e087
sha256
1c3c6a430fb954322220deb908be5d69a1365e68430a4438e6b9b55a71fbccf7
sha512
0834546dd565271c4728c3623dd7ba52aa541cef68edcfd258689d6ace9697b3a19186b01768509844eb73847fc807fba8fa2f0f7d1de3253dc2e86dbe0d9d74
ripemd-160
54485b68e5a80542c049229fa5dd411efb1d12c2
Diameter
57469442
Circumference
180545576.7931
Area
2.593963388467E+15
Volume
9.9382419002417E+22
Surface area
1.0375853553868E+16
Circumference
180545576.7931
Perimeter
114938884
Area
825684190947841
Diagonal
40637032.149207
Surface area
4954105145687046
Volume
2.3725804860997E+22
Space diagonal
49769996.713316
Perimeter
86204163
Area
3.5753174243202E+14
Altitude
24884998.356658
Surface area
3.5753174243202E+14
Volume
2.7961129177199E+21
Height
13545677.383069