21081617 is an odd 8-digits composite number following 21081616
and preceding 21081618 . In scientific notation, it is written as 2.1081617 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 20766900 positive integers (up to 21081617) that are relatively prime to 21081617.
21081617 has 4 divisors, whose sum is 21396336
The reverse of 21081617 is 71618012
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million eighty-one thousand six hundred seventeen
Scientific notation
2.1081617 × 10^7
Engineering notation
2.1081617 × 10^6
Prime Factorization
67 × 314651
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21081617
Product of the distinct prime numbers
The prime factorization of 21081617 is 67 × 314651.
Since it has a total of 2 prime factors.
2 , 5 , 19 , 23 , 722 , 596 , 9905 , 5243 , 52120 , 56742 , 800244 , 517227 , 6157937 , 1439705 , 34334309 , 93481751 , 744794530 , 369115488 , 4665421314 , 287270467
n×2
42163234
n×3
63244851
n×4
84326468
n×5
105408085
n÷2
10540808.5
n÷3
7027205.6666667
n÷3
5270404.25
n÷5
4216323.4
n2
444434575334689
n3
9.3693994987636E+21
n4
1.9752209175293E+29
n5
4.164085087374E+36
2 √n
4591.4722039886
3 √n
276.24937641049
4 √n
67.760402920796
5 √n
29.159547736416
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21081616
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21081617 can be divided by 4 positive divisors.
The sum of these divisors (counting 21081617) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011010111000010001
3
Ternary
1110200001112122
4
Quaternary
1100122320101
5
Quinary
20344102432
6
Senary
2031504025
8
Octal
120327021
10
Decimal
21081617
12
Duodecimal
7088015
16
Hexadecimal
141ae11
20
Vigesimal
6bf40h
36
Base36
cjuoh
md5
6ebc7eded1ce112eecfdc1410c1e99d4
sha1
319b53ca70eb1e2e13faaa623f41b02d9a45616b
sha256
885d27a5ed6155d4238b5db63056d0cf1ecf26e0de69f6190e8a5e4ad4f5654f
sha512
24164f5892da97aa579e02382524012b29486a050a0a121109edc3cf9af4b6b6cd17811dfafdbb0b47eefe69c854315ddcd496b49546d0abc8062f0d470343ee
ripemd-160
4687c77fcac5990e42ea3dc55dd0cdc17126659a
Diameter
42163234
Circumference
132459706.18599
Area
1.3962323968728E+15
Volume
3.9246448845151E+22
Surface area
5.584929587491E+15
Circumference
132459706.18599
Perimeter
84326468
Area
444434575334689
Diagonal
29813908.678155
Surface area
2666607452008134
Volume
9.3693994987636E+21
Space diagonal
36514431.749708
Perimeter
63244851
Area
1.9244581627999E+14
Altitude
18257215.874854
Surface area
1.9244581627999E+14
Volume
1.1041943202036E+21
Height
9937969.5593851