21554861 is an odd 8-digits composite number following 21554860
and preceding 21554862 . In scientific notation, it is written as 2.1554861 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20286912 positive integers (up to 21554861) that are relatively prime to 21554861.
21554861 has 4 divisors, whose sum is 22822812
The reverse of 21554861 is 16845512
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million five hundred fifty-four thousand eight hundred sixty-one
Scientific notation
2.1554861 × 10^7
Engineering notation
2.1554861 × 10^6
Prime Factorization
17 × 1267933
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21554861
Product of the distinct prime numbers
The prime factorization of 21554861 is 17 × 1267933.
Since it has a total of 2 prime factors.
8 , 3 , 63 , 64 , 788 , 203 , 695 , 5324 , 94050 , 56830 , 628845 , 409321 , 2322151 , 6182449 , 7499006 , 16334163 , 849223307 , 828239652 , 5385152808 , 8748257677
n×2
43109722
n×3
64664583
n×4
86219444
n×5
107774305
n÷2
10777430.5
n÷3
7184953.6666667
n÷3
5388715.25
n÷5
4310972.2
n2
464612032729321
n3
1.0014647784408E+22
n4
2.1586434095687E+29
n5
4.652925864182E+36
2 √n
4642.721292518
3 √n
278.30119779903
4 √n
68.137517510678
5 √n
29.289303570135
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21554860
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21554861 can be divided by 4 positive divisors.
The sum of these divisors (counting 21554861) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001110011010101101
3
Ternary
1111120002201012
4
Quaternary
1102032122231
5
Quinary
21004223421
6
Senary
2045555005
8
Octal
122163255
10
Decimal
21554861
12
Duodecimal
7275a65
16
Hexadecimal
148e6ad
20
Vigesimal
6ee731
36
Base36
ctzu5
md5
3dc8fd4ad83ff9416490f62405d8686f
sha1
83bed877d2582985e7f0d66a06a98397fd9713d8
sha256
db2a44e73bc50ff1265c38ea1f22f0cb9b11252caf0ad4ff4509e97614475f1b
sha512
8a5588fc1351f02d37eb11318227698cbb01bab1f082c2c7db88cf95ce8f9879fa918060ee8fef2362bb185d27a6a22386f672c3b8a0a13bdbf695fe623e9f29
ripemd-160
e6392cc1d204a42cead166ef0a95b9966ad7c3e9
Diameter
43109722
Circumference
135433185.9335
Area
1.4596217487919E+15
Volume
4.1949258543714E+22
Surface area
5.8384869951674E+15
Circumference
135433185.9335
Perimeter
86219444
Area
464612032729321
Diagonal
30483176.761267
Surface area
2787672196375926
Volume
1.0014647784408E+22
Space diagonal
37334114.402085
Perimeter
64664583
Area
2.0118291162376E+14
Altitude
18667057.201042
Surface area
2.0118291162376E+14
Volume
1.180237559925E+21
Height
10161058.920422