21554812 is an even 8-digits composite number following 21554811
and preceding 21554813 . In scientific notation, it is written as 2.1554812 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors.
There are 10755680 positive integers (up to 21554812) that are relatively prime to 21554812.
21554812 has 12 divisors, whose sum is 37796976
The reverse of 21554812 is 21845512
Previous prime number is 521
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred fifty-four thousand eight hundred twelve
Scientific notation
2.1554812 × 10^7
Engineering notation
2.1554812 × 10^6
Prime Factorization
2 × 2 × 521 × 10343
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10777406
Product of the distinct prime numbers
The prime factorization of 21554812 is 2 × 2 × 521 × 10343.
Since it has a total of 4 prime factors.
7 , 8 , 53 , 94 , 78 , 558 , 5064 , 5812 , 18328 , 12045 , 608290 , 317731 , 6636165 , 5411445 , 94654870 , 60041544 , 165432291 , 326746843 , 1527061821 , 4863510881
n×2
43109624
n×3
64664436
n×4
86219248
n×5
107774060
n÷2
10777406
n÷3
7184937.3333333
n÷3
5388703
n÷5
4310962.4
n2
464609920355344
n3
1.0014579486594E+22
n4
2.158623780926E+29
n5
4.6528729776589E+36
2 √n
4642.7160154375
3 √n
278.30098691436
4 √n
68.137478786917
5 √n
29.289290253629
1 , 2 , 4 , 521 , 1042 , 2084 , 10343 , 20686 , 41372 , 5388703 , 10777406 , 21554812
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21554811
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21554812 can be divided by 12 positive divisors.
The sum of these divisors (counting 21554812) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010001110011001111100
3
Ternary
1111120002122101
4
Quaternary
1102032121330
5
Quinary
21004223222
6
Senary
2045554444
8
Octal
122163174
10
Decimal
21554812
12
Duodecimal
7275a24
16
Hexadecimal
148e67c
20
Vigesimal
6ee70c
36
Base36
ctzss
md5
b89631f4720897bfbe3a999b5f1a1247
sha1
e915e9621d28f8e4118105adc91872d089fe74a5
sha256
10a9a2e3e72ae7dd0bb378e3c0c431bbb7d8d641b5a9342357e151b26adf7766
sha512
929d336c99ec47d1616f2b9c0959dde61d3fb83a91d973787eaa24c22dacc700f5d5dc74a26ec7487fc8e1da68566de81a344b836af0e21ad36e2a3fafaefa78
ripemd-160
53449e5731686159ba73d62412187082f5731949
Diameter
43109624
Circumference
135432878.05742
Area
1.4596151125733E+15
Volume
4.1948972458501E+22
Surface area
5.8384604502932E+15
Circumference
135432878.05742
Perimeter
86219248
Area
464609920355344
Diagonal
30483107.464802
Surface area
2787659522132064
Volume
1.0014579486594E+22
Space diagonal
37334029.531595
Perimeter
64664436
Area
2.01181996939E+14
Altitude
18667014.765798
Surface area
2.01181996939E+14
Volume
1.1802295109504E+21
Height
10161035.821601