21557771 is an odd 8-digits composite number following 21557770
and preceding 21557772 . In scientific notation, it is written as 2.1557771 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 21507552 positive integers (up to 21557771) that are relatively prime to 21557771.
21557771 has 4 divisors, whose sum is 21607992
The reverse of 21557771 is 17775512
Previous prime number is 433
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million five hundred fifty-seven thousand seven hundred seventy-one
Scientific notation
2.1557771 × 10^7
Engineering notation
2.1557771 × 10^6
Prime Factorization
433 × 49787
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21557771
Product of the distinct prime numbers
The prime factorization of 21557771 is 433 × 49787.
Since it has a total of 2 prime factors.
1 , 8 , 26 , 27 , 572 , 321 , 1116 , 8595 , 98792 , 11167 , 752534 , 824837 , 7695347 , 9048413 , 79872397 , 8895312 , 756437716 , 721405746 , 2793576479 , 2055932240
n×2
43115542
n×3
64673313
n×4
86231084
n×5
107788855
n÷2
10778885.5
n÷3
7185923.6666667
n÷3
5389442.75
n÷5
4311554.2
n2
464737490488441
n3
1.0018704395064E+22
n4
2.1598093506549E+29
n5
4.6560675385078E+36
2 √n
4643.0346757266
3 √n
278.31372119292
4 √n
68.139817109577
5 √n
29.29009436411
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
-21557770
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 21557771 can be divided by 4 positive divisors.
The sum of these divisors (counting 21557771) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001111001000001011
3
Ternary
1111120020200222
4
Quaternary
1102033020023
5
Quinary
21004322041
6
Senary
2050020255
8
Octal
122171013
10
Decimal
21557771
12
Duodecimal
727768b
16
Hexadecimal
148f20b
20
Vigesimal
6eee8b
36
Base36
cu22z
md5
32bf64a5a452006d27def7229957caa7
sha1
1a566266f02f13ca6bd0aa4f22e1fd91569bba1b
sha256
58cd8a9cea7e40e119c14758c73ee0f146d93911acf21b55b4e70a67c614b667
sha512
2c4004624f9fdfe6998ad18112001baf44ed305fd6b3bcb1f706241da85d5abb1e46b359e991d341d5062ce1307395074295d1878310bb32c62db327e19e0b87
ripemd-160
2dde931601b92c5b51c6ed75dab6225e5bad97f1
Diameter
43115542
Circumference
135451470.00274
Area
1.4600158859662E+15
Volume
4.1966250834696E+22
Surface area
5.840063543865E+15
Circumference
135451470.00274
Perimeter
86231084
Area
464737490488441
Diagonal
30487292.122733
Surface area
2788424942930646
Volume
1.0018704395064E+22
Space diagonal
37339154.669935
Perimeter
64673313
Area
2.0123723642701E+14
Altitude
18669577.334967
Surface area
2.0123723642701E+14
Volume
1.1807156360756E+21
Height
10162430.707578