21084887 is an odd 8-digits prime number following 21084886
and preceding 21084888 . In scientific notation, it is written as 2.1084887 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 21084886 positive integers (up to 21084887) that are relatively prime to 21084887.
21084887 has 2 divisors, whose sum is 21084888
The reverse of 21084887 is 78848012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million eighty-four thousand eight hundred eighty-seven
Scientific notation
2.1084887 × 10^7
Engineering notation
2.1084887 × 10^6
Prime Factorization
21084887
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21084887
Product of the distinct prime numbers
The prime factorization of 21084887 is 21084887.
Since it has a total of 1 prime factors.
3 , 7 , 10 , 46 , 415 , 51 , 2200 , 4886 , 78413 , 4645 , 508012 , 154472 , 4933 , 6644979 , 70324606 , 32585540 , 31652824 , 466023085 , 3149227658 , 5507046666
n×2
42169774
n×3
63254661
n×4
84339548
n×5
105424435
n÷2
10542443.5
n÷3
7028295.6666667
n÷3
5271221.75
n÷5
4216977.4
n2
444572459802769
n3
9.3737600782534E+21
n4
1.9764467201508E+29
n5
4.1673155755901E+36
2 √n
4591.8282851169
3 √n
276.26365881838
4 √n
67.763030371412
5 √n
29.160452276192
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21084888
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10542444
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4591.828394006
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999051453
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21084887 can be divided by 2 positive divisors.
The sum of these divisors (counting 21084887) is 21084888, the average is 10542444.
Base
System
Value
2
Binary
1010000011011101011010111
3
Ternary
1110200020000202
4
Quaternary
1100123223113
5
Quinary
20344204022
6
Senary
2031531115
8
Octal
120335327
10
Decimal
21084887
12
Duodecimal
7089a9b
16
Hexadecimal
141bad7
20
Vigesimal
6bfc47
36
Base36
cjx7b
md5
d7ca8af89e6d7f3211f93a4469f4272d
sha1
aa3104ba8caabf71a01dc9149f31b5d9918760ea
sha256
f6dca4ff86d4f649d583e9b8b549bc93e40343149bcaef94367b78bce7e85e61
sha512
3670095862283095557a2004f20b2834d6b646860dd7195c91bf4e608a06c6d4fc02a8b3ee0bb20debb655668a7a339ba4a7ebafd40e369e30d5ebbd6ccea3e3
ripemd-160
b68eb1404b7a070c6878c3ed3339ba454a5dde3c
Diameter
42169774
Circumference
132480252.20194
Area
1.3966655737047E+15
Volume
3.9264714397806E+22
Surface area
5.5866622948189E+15
Circumference
132480252.20194
Perimeter
84339548
Area
444572459802769
Diagonal
29818533.156504
Surface area
2667434758816614
Volume
9.3737600782534E+21
Space diagonal
36520095.555849
Perimeter
63254661
Area
1.9250552200607E+14
Altitude
18260047.777924
Surface area
1.9250552200607E+14
Volume
1.1047082194248E+21
Height
9939511.0521681