21551290 is an even 8-digits composite number following 21551289
and preceding 21551291 . In scientific notation, it is written as 2.1551290 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 8620512 positive integers (up to 21551290) that are relatively prime to 21551290.
21551290 has 8 divisors, whose sum is 38792340
The reverse of 21551290 is 09215512
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million five hundred fifty-one thousand two hundred ninety
Scientific notation
2.1551290 × 10^7
Engineering notation
2.1551290 × 10^6
Prime Factorization
2 × 5 × 2155129
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551290
Product of the distinct prime numbers
The prime factorization of 21551290 is 2 × 5 × 2155129.
Since it has a total of 3 prime factors.
9 , 3 , 97 , 37 , 152 , 728 , 5695 , 8101 , 76283 , 69969 , 154522 , 892622 , 7124552 , 500182 , 730176 , 40435478 , 614763106 , 394067647 , 533781246 , 5111195673
n×2
43102580
n×3
64653870
n×4
86205160
n×5
107756450
n÷2
10775645
n÷3
7183763.3333333
n÷3
5387822.5
n÷5
4310258
n2
464458100664100
n3
1.0009671220261E+22
n4
2.157213272725E+29
n5
4.6490728832346E+36
2 √n
4642.3366961047
3 √n
278.28582820383
4 √n
68.134695244821
5 √n
29.288333032354
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21551289
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21551290 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551290) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101100010111010
3
Ternary
1111112220210221
4
Quaternary
1102031202322
5
Quinary
21004120130
6
Senary
2045530254
8
Octal
122154272
10
Decimal
21551290
12
Duodecimal
727398a
16
Hexadecimal
148d8ba
20
Vigesimal
6edi4a
36
Base36
ctx2y
md5
12a0a2dc2d41075942e377dbe447691e
sha1
430d5e0989ba4c180c6e816445f27a80b5271b2c
sha256
23029d2f1a1b8c36ef239bf7809fd633fa79e37d072a7855a5057fa4e29cf3db
sha512
f706416cf48fd9d3f6ccab0a8a601d321d7fa4c5ee45f6433b7d336d7c3cf7f85b1faffeb697df599682e0ff2ce5b2d95ff106e475c412edc3f87a11eccc6ddf
ripemd-160
9d82a451307378e51023c49dd1216f3b6192e324
Diameter
43102580
Circumference
135410748.67877
Area
1.4591381569466E+15
Volume
4.1928412760562E+22
Surface area
5.8365526277864E+15
Circumference
135410748.67877
Perimeter
86205160
Area
464458100664100
Diagonal
30478126.604636
Surface area
2786748603984600
Volume
1.0009671220261E+22
Space diagonal
37327929.248651
Perimeter
64653870
Area
2.0111625708429E+14
Altitude
18663964.624326
Surface area
2.0111625708429E+14
Volume
1.1796510662158E+21
Height
10159375.534879