21557047 is an odd 8-digits prime number following 21557046
and preceding 21557048 . In scientific notation, it is written as 2.1557047 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 21557046 positive integers (up to 21557047) that are relatively prime to 21557047.
21557047 has 2 divisors, whose sum is 21557048
The reverse of 21557047 is 74075512
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million five hundred fifty-seven thousand forty-seven
Scientific notation
2.1557047 × 10^7
Engineering notation
2.1557047 × 10^6
Prime Factorization
21557047
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21557047
Product of the distinct prime numbers
The prime factorization of 21557047 is 21557047.
Since it has a total of 1 prime factors.
3 , 9 , 97 , 2 , 746 , 729 , 4333 , 5945 , 73249 , 56902 , 350634 , 343797 , 456546 , 7529520 , 74119299 , 11217420 , 503121418 , 549453951 , 952442194 , 4117920861
n×2
43114094
n×3
64671141
n×4
86228188
n×5
107785235
n÷2
10778523.5
n÷3
7185682.3333333
n÷3
5389261.75
n÷5
4311409.4
n2
464706275360209
n3
1.0017695019135E+22
n4
2.1595192235916E+29
n5
4.6552857400367E+36
2 √n
4642.9567088225
3 √n
278.31060551227
4 √n
68.13924499745
5 √n
29.289897624724
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21557048
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10778524
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4642.9568165125
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999072229
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21557047 can be divided by 2 positive divisors.
The sum of these divisors (counting 21557047) is 21557048, the average is 10778524.
Base
System
Value
2
Binary
1010010001110111100110111
3
Ternary
1111120012201011
4
Quaternary
1102032330313
5
Quinary
21004311142
6
Senary
2050013051
8
Octal
122167467
10
Decimal
21557047
12
Duodecimal
7277187
16
Hexadecimal
148ef37
20
Vigesimal
6eecc7
36
Base36
cu1iv
md5
5e318647fb439952cc198ef8281dbaae
sha1
b7d5d4d192dfddbd55dd888fbb4d5d0bd377a658
sha256
43dde64b4005b02cef95f57501965663952ae7c80393f646deaea4e1b07cead6
sha512
1cf5d1aab37ed6484dd90cc1c5e32170ac25c1cfd9aae050068027d54702fcb2f4d2fa6082e730fb2200f205167c3a1032c32664ad308db37714a9ce263b0748
ripemd-160
e567c9f638ed5cd9fee1ee76caf5ed310c790ed3
Diameter
43114094
Circumference
135446920.97658
Area
1.4599178207487E+15
Volume
4.196202277069E+22
Surface area
5.8396712829948E+15
Circumference
135446920.97658
Perimeter
86228188
Area
464706275360209
Diagonal
30486268.232114
Surface area
2788237652161254
Volume
1.0017695019135E+22
Space diagonal
37337900.66515
Perimeter
64671141
Area
2.0122371987999E+14
Altitude
18668950.332575
Surface area
2.0122371987999E+14
Volume
1.1805966799815E+21
Height
10162089.410705