216907891 is an odd 9-digits prime number following 216907890
and preceding 216907892 . In scientific notation, it is written as 2.16907891 × 10^8.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 216907890 positive integers (up to 216907891) that are relatively prime to 216907891.
216907891 has 2 divisors, whose sum is 216907892
The reverse of 216907891 is 198709612
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 43
Digital Root 7
Name
two hundred sixteen million nine hundred seven thousand eight hundred ninety-one
Scientific notation
2.16907891 × 10^8
Engineering notation
2.16907891 × 10^6
Prime Factorization
216907891
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
216907891
Product of the distinct prime numbers
The prime factorization of 216907891 is 216907891.
Since it has a total of 1 prime factors.
8 , 4 , 100 , 52 , 383 , 813 , 1873 , 1049 , 14788 , 9338 , 902703 , 532818 , 4391003 , 6129676 , 22749386 , 68959110 , 951485161 , 781298644 , 4241230677 , 9523964465
n×2
433815782
n×3
650723673
n×4
867631564
n×5
1084539455
n÷2
108453945.5
n÷3
72302630.333333
n÷3
54226972.75
n÷5
43381578.2
n2
47049033178067881
n3
1.0205306560244E+25
n4
2.2136115229909E+33
n5
4.8014980694526E+41
2 √n
14727.793147651
3 √n
600.83946476524
4 √n
121.35811941379
5 √n
46.47881750098
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
216907892
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
108453946
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
14727.793181601
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999907795
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 216907891 can be divided by 2 positive divisors.
The sum of these divisors (counting 216907891) is 216907892, the average is 108453946.
Base
System
Value
2
Binary
1100111011011100000001110011
3
Ternary
120010011001200121
4
Quaternary
30323130001303
5
Quinary
421012023031
6
Senary
33305031111
8
Octal
1473340163
10
Decimal
216907891
12
Duodecimal
60785497
16
Hexadecimal
cedc073
20
Vigesimal
37fd9eb
36
Base36
3l5377
md5
f6fd80e0f1371b48d63a920977e6d19e
sha1
b796d3bfe5daf9c6f7de986403c3fd1e475be4fb
sha256
11e313fb855d6b6232447f5602a9b6b8cf3c6ffd3a6ab6cc8e9b3d2c293a40cb
sha512
c8cdcfa47230fe82757c07eece2b860123265528f6f8e302672c8e22ca872afd0247773a665dda49760134107d88f0b22130067520620cdd93eb940b7ea0c15c
ripemd-160
6aafefaa4e5f0103c906f094921a81046e62c71e
Diameter
433815782
Circumference
1362872473.7425
Area
1.4780889699072E+17
Volume
4.2747888156391E+25
Surface area
5.9123558796288E+17
Circumference
1362872473.7425
Perimeter
867631564
Area
47049033178067881
Diagonal
306754081.23795
Surface area
282294199068407286
Volume
1.0205306560244E+25
Space diagonal
375695487.77461
Perimeter
650723673
Area
2.0372828977852E+16
Altitude
187847743.88731
Surface area
2.0372828977852E+16
Volume
1.2027069121393E+24
Height
102251360.41265