21072587 is an odd 8-digits composite number following 21072586
and preceding 21072588 . In scientific notation, it is written as 2.1072587 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20775720 positive integers (up to 21072587) that are relatively prime to 21072587.
21072587 has 4 divisors, whose sum is 21369456
The reverse of 21072587 is 78527012
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million seventy-two thousand five hundred eighty-seven
Scientific notation
2.1072587 × 10^7
Engineering notation
2.1072587 × 10^6
Prime Factorization
71 × 296797
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21072587
Product of the distinct prime numbers
The prime factorization of 21072587 is 71 × 296797.
Since it has a total of 2 prime factors.
3 , 4 , 50 , 60 , 264 , 812 , 8399 , 892 , 60917 , 70012 , 541736 , 825864 , 7765765 , 9366322 , 399909 , 57394568 , 773984321 , 877779273 , 9851231353 , 7742486245
n×2
42145174
n×3
63217761
n×4
84290348
n×5
105362935
n÷2
10536293.5
n÷3
7024195.6666667
n÷3
5268146.75
n÷5
4214517.4
n2
444053922872569
n3
9.3573649224235E+21
n4
1.9718388641852E+29
n5
4.1551746015523E+36
2 √n
4590.4887539346
3 √n
276.20992832768
4 √n
67.753145712466
5 √n
29.157049295791
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
-21072586
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 21072587 can be divided by 4 positive divisors.
The sum of these divisors (counting 21072587) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011000101011001011
3
Ternary
1110122121011012
4
Quaternary
1100120223023
5
Quinary
20343310322
6
Senary
2031354135
8
Octal
120305313
10
Decimal
21072587
12
Duodecimal
708294b
16
Hexadecimal
1418acb
20
Vigesimal
6be197
36
Base36
cjnpn
md5
74616877547ca219dd61fa0d6e7427dd
sha1
b0e4afc1b838bf357538dd6aef7c8f50bc79c6ab
sha256
cae85f50921aa7c954168f0de4230992fd2bb5238bf6b8c35797ba07ae0ecfe6
sha512
c1f2552d8313a7b896b40566975b41f0561fef0c49722a0a190d8c08862efcd7fbd2b1d97da6d48a29cebd899080e838172555bb3fde464135106dbd71344931
ripemd-160
10a08a5e37ff8befe7ec3041022fb8a77eba869a
Diameter
42145174
Circumference
132402969.02266
Area
1.3950365418942E+15
Volume
3.9196038529659E+22
Surface area
5.5801461675768E+15
Circumference
132402969.02266
Perimeter
84290348
Area
444053922872569
Diagonal
29801138.329687
Surface area
2664323537235414
Volume
9.3573649224235E+21
Space diagonal
36498791.330915
Perimeter
63217761
Area
1.9228098892889E+14
Altitude
18249395.665458
Surface area
1.9228098892889E+14
Volume
1.1027760317805E+21
Height
9933712.7765623