21091372 is an even 8-digits composite number following 21091371
and preceding 21091373 . In scientific notation, it is written as 2.1091372 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 6 positive divisors.
There are 10545684 positive integers (up to 21091372) that are relatively prime to 21091372.
21091372 has 6 divisors, whose sum is 36909908
The reverse of 21091372 is 27319012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million ninety-one thousand three hundred seventy-two
Scientific notation
2.1091372 × 10^7
Engineering notation
2.1091372 × 10^6
Prime Factorization
2 × 2 × 5272843
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10545686
Product of the distinct prime numbers
The prime factorization of 21091372 is 2 × 2 × 5272843.
Since it has a total of 3 prime factors.
5 , 6 , 9 , 69 , 31 , 647 , 4086 , 2551 , 13201 , 11945 , 268266 , 131300 , 6546452 , 5785745 , 51768191 , 3985190 , 747316262 , 773228656 , 3400735676 , 9368508507
n×2
42182744
n×3
63274116
n×4
84365488
n×5
105456860
n÷2
10545686
n÷3
7030457.3333333
n÷3
5272843
n÷5
4218274.4
n2
444845972842384
n3
9.3824118959206E+21
n4
1.9788793955409E+29
n5
4.1737281474488E+36
2 √n
4592.5343765725
3 √n
276.29197904261
4 √n
67.768240176151
5 √n
29.162245809848
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21091371
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21091372 can be divided by 6 positive divisors.
The sum of these divisors (counting 21091372) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000011101010000101100
3
Ternary
1110200112220221
4
Quaternary
1100131100230
5
Quinary
20344410442
6
Senary
2032021124
8
Octal
120352054
10
Decimal
21091372
12
Duodecimal
70917a4
16
Hexadecimal
141d42c
20
Vigesimal
6bg88c
36
Base36
ck27g
md5
2bda9b70dd28bd5312f053057764113b
sha1
9f2d9ef0e124b528753c0f564548865d1121e18a
sha256
7a4ec7c5fe6685fdb48852760fc76b695a2cfb9f0107d96a1e62fb4c63f2e3be
sha512
d704da50497eb9ac7bafdce6429e06a78e39ad997901c17c9c5a052d74d03ef87c863579840250152346f1a0f0717509b0ac0913e66f3bed8eb99f527aaab4fa
ripemd-160
670012b8728b1c8e979bccdedd5d08538049d7cc
Diameter
42182744
Circumference
132520998.65866
Area
1.3975248402606E+15
Volume
3.9300955046904E+22
Surface area
5.5900993610426E+15
Circumference
132520998.65866
Perimeter
84365488
Area
444845972842384
Diagonal
29827704.331456
Surface area
2669075837054304
Volume
9.3824118959206E+21
Space diagonal
36531327.905336
Perimeter
63274116
Area
1.9262395662635E+14
Altitude
18265663.952668
Surface area
1.9262395662635E+14
Volume
1.1057278459151E+21
Height
9942568.1104854