21887897 is an odd 8-digits prime number following 21887896
and preceding 21887898 . In scientific notation, it is written as 2.1887897 × 10^7.
The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors.
There are 21887896 positive integers (up to 21887897) that are relatively prime to 21887897.
21887897 has 2 divisors, whose sum is 21887898
The reverse of 21887897 is 79878812
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 50 Digital Root 5
Name
twenty-one million eight hundred eighty-seven thousand eight hundred ninety-seven
Scientific notation
2.1887897 × 10^7
Engineering notation
2.1887897 × 10^6
Prime Factorization
21887897
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21887897 Product of the distinct prime numbers
The prime factorization of 21887897 is 21887897.
Since it has a total of 1 prime factors.
8 , 7 , 84 , 43 , 42 , 459 , 3379 , 5369 , 77680 , 34073 , 895648 , 462629 , 9335385 , 1679324 , 48947231 , 98711957 , 616798511 , 222615999 , 5641340024 , 4236925908
n×2
43775794
n×3
65663691
n×4
87551588
n×5
109439485
n÷2
10943948.5
n÷3
7295965.6666667
n÷3
5471974.25
n÷5
4377579.4
n2
479080035082609
n3
1.0486054462645E+22
n4
2.2951768001475E+29
n5
5.0236593398419E+36
2 √n4678.4502776026
3 √n279.72718750814
4 √n68.399197930989
5 √n29.37925692979
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21887898 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10943949 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4678.4503844756 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999086253 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21887897 can be divided by 2 positive divisors.
The sum of these divisors (counting 21887897) is 21887898, the average is 10943949.
Base
System
Value
2
Binary
1010011011111101110011001
3
Ternary
1112012000112212
4
Quaternary
1103133232121
5
Quinary
21100403042
6
Senary
2101044505
8
Octal
123375631
10
Decimal
21887897
12
Duodecimal
73b6735
16
Hexadecimal
14dfb99
20
Vigesimal
6gfjeh
36
Base36
d14t5
md5
676b47be48d90384de49e1a46bec61d2
sha1
e5e78faa11862c36fa178820122310c418fc8f10
sha256
a361f2c2924fe0dabce7070afe6fca76fdf3309c2c21a6967d92bd57e3609e5f
sha512
db1240819d2d9c11e5bbdcd74d8c90ef85d1c4b2b87b10d3c5c51eef99169bcda2a461fcce5f291ecd8798594d39f0216385791b488431072a83bb12619eeaff
ripemd-160
a4353a973a2c0a3294385fbc11a5cdbbf83821cf
Diameter
43775794
Circumference
137525712.83546
Area
1.5050743186971E+15
Volume
4.3923882219982E+22
Surface area
6.0202972747883E+15
Circumference
137525712.83546
Perimeter
87551588
Area
479080035082609
Diagonal
30954160.789225
Surface area
2874480210495654
Volume
1.0486054462645E+22
Space diagonal
37910949.674834
Perimeter
65663691
Area
2.0744774041374E+14
Altitude
18955474.837417
Surface area
2.0744774041374E+14
Volume
1.2357933697379E+21
Height
10318053.596408