8201991 is an odd 7-digits composite number following 8201990
and preceding 8201992 . In scientific notation, it is written as 8.201991 × 10^6.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 4620000 positive integers (up to 8201991) that are relatively prime to 8201991.
8201991 has 16 divisors, whose sum is 12676608
The reverse of 8201991 is 1991028
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 30
Digital Root 3
Name
eight million two hundred one thousand nine hundred ninety-one
Scientific notation
8.201991 × 10^6
Engineering notation
8.201991 × 10^6
Prime Factorization
3 × 7 × 71 × 5501
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
8201991
Product of the distinct prime numbers
The prime factorization of 8201991 is 3 × 7 × 71 × 5501.
Since it has a total of 4 prime factors.
10 , 5 , 57 , 36 , 934 , 377 , 8418 , 8375 , 96227 , 48860 , 102350 , 773915 , 2998252 , 4666066 , 67023177 , 8152170 , 395259762 , 232575386 , 5357184898 , 4855458836
n×2
16403982
n×3
24605973
n×4
32807964
n×5
41009955
n÷2
4100995.5
n÷3
2733997
n÷3
2050497.75
n÷5
1640398.2
n2
67272656364081
n3
5.5176972204429E+20
n4
4.5256102942797E+27
n5
3.711901490319E+34
2 √n
2863.9118352352
3 √n
201.6692869758
4 √n
53.515528916709
5 √n
24.142589922991
1 , 3 , 7 , 21 , 71 , 213 , 497 , 1491 , 5501 , 16503 , 38507 , 115521 , 390571 , 1171713 , 2733997 , 8201991
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-8201990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 8201991 can be divided by 16 positive divisors.
The sum of these divisors (counting 8201991) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111010010011100000111
3
Ternary
120102201000110
4
Quaternary
133102130013
5
Quinary
4044430431
6
Senary
451444103
8
Octal
37223407
10
Decimal
8201991
12
Duodecimal
28b6633
16
Hexadecimal
7d2707
20
Vigesimal
2b54jb
36
Base36
4vsp3
md5
9efb74ef0d02f5dc29ac1327262316e0
sha1
12edc064421a4c2bb75b153165d3c6e58ea2db0f
sha256
dfb57c153bafabff48cb26ea99ba04d2f04871173a58fb9e981971a4e9244959
sha512
806fc66cec19f8d49e27b9462a387bd4c047407e14ca7e7b52f64cbddc0d400bb3537ef68c50bd65541a8331d7ae192e6379f22f9c9fae1c3299a01c8c940e8e
ripemd-160
be8b16f8dfda2c02739d1c872e494b9a8302e7d0
Diameter
16403982
Circumference
51534629.340819
Area
2.1134328302087E+14
Volume
2.3112476069968E+21
Surface area
8.4537313208347E+14
Circumference
51534629.340819
Perimeter
32807964
Area
67272656364081
Diagonal
11599366.910662
Surface area
403635938184486
Volume
5.5176972204429E+20
Space diagonal
14206265.135223
Perimeter
24605973
Area
29129914695678
Altitude
7103132.5676113
Surface area
29129914695678
Volume
6.5026685351822E+19
Height
3866455.6368874