21551372 is an even 8-digits composite number following 21551371
and preceding 21551373 . In scientific notation, it is written as 2.1551372 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 6 positive divisors.
There are 10775684 positive integers (up to 21551372) that are relatively prime to 21551372.
21551372 has 6 divisors, whose sum is 37714908
The reverse of 21551372 is 27315512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million five hundred fifty-one thousand three hundred seventy-two
Scientific notation
2.1551372 × 10^7
Engineering notation
2.1551372 × 10^6
Prime Factorization
2 × 2 × 5387843
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10775686
Product of the distinct prime numbers
The prime factorization of 21551372 is 2 × 2 × 5387843.
Since it has a total of 3 prime factors.
4 , 6 , 19 , 23 , 75 , 542 , 7130 , 5609 , 44756 , 80838 , 830017 , 391261 , 8195487 , 2191955 , 45331630 , 54474549 , 948511176 , 529271218 , 8720460013 , 8465155489
n×2
43102744
n×3
64654116
n×4
86205488
n×5
107756860
n÷2
10775686
n÷3
7183790.6666667
n÷3
5387843
n÷5
4310274.4
n2
464461635082384
n3
1.0009785477389E+22
n4
2.157246104634E+29
n5
4.6491613296519E+36
2 √n
4642.3455278555
3 √n
278.28618115113
4 √n
68.134760055756
5 √n
29.288355320019
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
-21551371
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 21551372 can be divided by 6 positive divisors.
The sum of these divisors (counting 21551372) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010010001101100100001100
3
Ternary
1111112220220222
4
Quaternary
1102031210030
5
Quinary
21004120442
6
Senary
2045530512
8
Octal
122154414
10
Decimal
21551372
12
Duodecimal
7273a38
16
Hexadecimal
148d90c
20
Vigesimal
6edi8c
36
Base36
ctx58
md5
f88c6aeabc853c7206b1839801fb2776
sha1
a2b709879983ef8eb511308593c42870fba67e1d
sha256
988dba4cf29753a8acbf9535d797b2a11fe2e11c051370723bf1955875892ab9
sha512
c423e5d40f6422bcfa720a2272b158210536be01ae9889e9680b39afc94e9b0ee674d808b5d7913fc466c67e7e1f8dbf3705a0a925e939a55c0fa45a17a1f503
ripemd-160
b81218f772338a6c2cf22e182493c88800d38a75
Diameter
43102744
Circumference
135411263.89996
Area
1.4591492606491E+15
Volume
4.1928891359699E+22
Surface area
5.8365970425965E+15
Circumference
135411263.89996
Perimeter
86205488
Area
464461635082384
Diagonal
30478242.570148
Surface area
2786769810494304
Volume
1.0009785477389E+22
Space diagonal
37328071.276817
Perimeter
64654116
Area
2.011177875323E+14
Altitude
18664035.638409
Surface area
2.011177875323E+14
Volume
1.1796645315474E+21
Height
10159414.190049