21396871 is an odd 8-digits prime number following 21396870
and preceding 21396872 . In scientific notation, it is written as 2.1396871 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 21396870 positive integers (up to 21396871) that are relatively prime to 21396871.
21396871 has 2 divisors, whose sum is 21396872
The reverse of 21396871 is 17869312
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 37 Digital Root 1
Name
twenty-one million three hundred ninety-six thousand eight hundred seventy-one
Scientific notation
2.1396871 × 10^7
Engineering notation
2.1396871 × 10^6
Prime Factorization
21396871
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21396871 Product of the distinct prime numbers
The prime factorization of 21396871 is 21396871.
Since it has a total of 1 prime factors.
7 , 2 , 65 , 91 , 499 , 989 , 6186 , 3854 , 78285 , 51023 , 31266 , 392087 , 3708154 , 1253296 , 84440639 , 75741233 , 748661052 , 700238450 , 1997909228 , 445025659
n×2
42793742
n×3
64190613
n×4
85587484
n×5
106984355
n÷2
10698435.5
n÷3
7132290.3333333
n÷3
5349217.75
n÷5
4279374.2
n2
457826088590641
n3
9.7960457580085E+21
n4
2.0960472739421E+29
n5
4.484885313044E+36
2 √n4625.6751939582
3 √n277.61957782428
4 √n68.012316487223
5 √n29.246240949427
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21396872 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10698436 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4625.6753020505 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999065284 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21396871 can be divided by 2 positive divisors.
The sum of these divisors (counting 21396871) is 21396872, the average is 10698436.
Base
System
Value
2
Binary
1010001100111110110000111
3
Ternary
1111021001222201
4
Quaternary
1101213312013
5
Quinary
20434144441
6
Senary
2042335331
8
Octal
121476607
10
Decimal
21396871
12
Duodecimal
71ba547
16
Hexadecimal
1467d87
20
Vigesimal
6dec3b
36
Base36
cqlxj
md5
967f43aededc0946310dd377b7fed740
sha1
76d3f82526f45330e6f79ee89e59f3ca10991e97
sha256
20a71c445b8049ead743113a046959a1f7579ccc8ed23589c8ffb77770c3c186
sha512
5295fca21b438f3073ada5de3ce1235f9e89dfb00653b1d10c6024ad948dc5185bad6cfc8388b8174b89248ea29c53c1bb0cba55b6c516bdd825b44ef666972d
ripemd-160
65b69ab46adaebb84da271b34e9a2600ae8078f5
Diameter
42793742
Circumference
134440505.48682
Area
1.4383030765381E+15
Volume
4.1033580516785E+22
Surface area
5.7532123061524E+15
Circumference
134440505.48682
Perimeter
85587484
Area
457826088590641
Diagonal
30259745.160548
Surface area
2746956531543846
Volume
9.7960457580085E+21
Space diagonal
37060467.694997
Perimeter
64190613
Area
1.9824451161738E+14
Altitude
18530233.847499
Surface area
1.9824451161738E+14
Volume
1.1544750640503E+21
Height
10086581.720183