21551885 is an odd 8-digits composite number following 21551884
and preceding 21551886 . In scientific notation, it is written as 2.1551885 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 17070400 positive integers (up to 21551885) that are relatively prime to 21551885.
21551885 has 8 divisors, whose sum is 26118936
The reverse of 21551885 is 58815512
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million five hundred fifty-one thousand eight hundred eighty-five
Scientific notation
2.1551885 × 10^7
Engineering notation
2.1551885 × 10^6
Prime Factorization
5 × 101 × 42677
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551885
Product of the distinct prime numbers
The prime factorization of 21551885 is 5 × 101 × 42677.
Since it has a total of 3 prime factors.
10 , 4 , 91 , 88 , 92 , 559 , 6433 , 5925 , 23133 , 9228 , 89713 , 792764 , 6130779 , 5527491 , 28055932 , 51555483 , 165249899 , 820381473 , 7669829092 , 9176807305
n×2
43103770
n×3
64655655
n×4
86207540
n×5
107759425
n÷2
10775942.5
n÷3
7183961.6666667
n÷3
5387971.25
n÷5
4310377
n2
464483747053225
n3
1.001050030086E+22
n4
2.157451512766E+29
n5
4.649714689621E+36
2 √n
4642.400779769
3 √n
278.28838920357
4 √n
68.135165515092
5 √n
29.288494752285
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
-21551884
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 21551885 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551885) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101101100001101
3
Ternary
1111112221121222
4
Quaternary
1102031230031
5
Quinary
21004130020
6
Senary
2045533125
8
Octal
122155415
10
Decimal
21551885
12
Duodecimal
72741a5
16
Hexadecimal
148db0d
20
Vigesimal
6edje5
36
Base36
ctxjh
md5
34cfaa5a6126738471031302bba9a5ee
sha1
ee9b4b9e18b291d82fa5275ee05a32b21a781df1
sha256
813730632934bac615b6d0277c34362a67c017a4f1c95166cfa40b0deba75092
sha512
c963a1d0c6ff2b078b13f3e1ce99b70c00452a9109ea655eb6b4c56530c389a907525384aaf5fdf63da0e3f66fdb4d62ec3204c2768e7eb29bef47a899eaacae
ripemd-160
23934a1a8e55056ca7ada784b9e4ceca8aaaa190
Diameter
43103770
Circumference
135414487.17402
Area
1.4592187274543E+15
Volume
4.1931885605254E+22
Surface area
5.8368749098171E+15
Circumference
135414487.17402
Perimeter
86207540
Area
464483747053225
Diagonal
30478968.061705
Surface area
2786902482319350
Volume
1.001050030086E+22
Space diagonal
37328959.818882
Perimeter
64655655
Area
2.0112736229654E+14
Altitude
18664479.909441
Surface area
2.0112736229654E+14
Volume
1.1797487743014E+21
Height
10159656.020568