15201991 is an odd 8-digits composite number following 15201990
and preceding 15201992 . In scientific notation, it is written as 1.5201991 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 12986520 positive integers (up to 15201991) that are relatively prime to 15201991.
15201991 has 8 divisors, whose sum is 17432064
The reverse of 15201991 is 19910251
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
fifteen million two hundred one thousand nine hundred ninety-one
Scientific notation
1.5201991 × 10^7
Engineering notation
1.5201991 × 10^6
Prime Factorization
7 × 311 × 6983
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
15201991
Product of the distinct prime numbers
The prime factorization of 15201991 is 7 × 311 × 6983.
Since it has a total of 3 prime factors.
5 , 6 , 5 , 61 , 493 , 12 , 356 , 210 , 96611 , 67791 , 964044 , 820365 , 4582859 , 5744211 , 53010384 , 86294780 , 423588281 , 193880739 , 642946744 , 4098883182
n×2
30403982
n×3
45605973
n×4
60807964
n×5
76009955
n÷2
7600995.5
n÷3
5067330.3333333
n÷3
3800497.75
n÷5
3040398.2
n2
231100530364081
n3
3.51318818269E+21
n4
5.340745513456E+28
n5
8.1189965228848E+35
2 √n
3898.973069925
3 √n
247.72328114505
4 √n
62.441757421816
5 √n
27.313672276573
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-15201990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 15201991 can be divided by 8 positive divisors.
The sum of these divisors (counting 15201991) is 1, the average is 0.125.
Base
System
Value
2
Binary
111001111111011011000111
3
Ternary
1001121100012201
4
Quaternary
321333123013
5
Quinary
12342430431
6
Senary
1301455331
8
Octal
71773307
10
Decimal
15201991
12
Duodecimal
5111547
16
Hexadecimal
e7f6c7
20
Vigesimal
4f04jb
36
Base36
91txj
md5
79fd30f29a2561d9b88151ed2cc051db
sha1
fc5bfd9bf6d5158a2cd5eaef7a8b6dc02f8394b3
sha256
d360add06a71180721a3daa1c51951df3f5503773fc9bc415861fb3c13f6b7c4
sha512
2b09a6c677c96fb70e3976c18f484ad52f94efb284fdf3cb3292e821afbbfc7d04754873cf7be8ba7be280824f85ccef4e99e24b09a517b347b9256e20e375b4
ripemd-160
cd94da694dabc11af503571db54289696f30250e
Diameter
30403982
Circumference
95516926.491076
Area
7.260237284325E+14
Volume
1.4716008247223E+22
Surface area
2.90409491373E+15
Circumference
95516926.491076
Perimeter
60807964
Area
231100530364081
Diagonal
21498861.847274
Surface area
1386603182184486
Volume
3.51318818269E+21
Space diagonal
26330620.788205
Perimeter
45605973
Area
1.0006946506168E+14
Altitude
13165310.394102
Surface area
1.0006946506168E+14
Volume
4.1403319792742E+20
Height
7166287.2824246