21538061 is an odd 8-digits prime number following 21538060
and preceding 21538062 . In scientific notation, it is written as 2.1538061 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 21538060 positive integers (up to 21538061) that are relatively prime to 21538061.
21538061 has 2 divisors, whose sum is 21538062
The reverse of 21538061 is 16083512
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million five hundred thirty-eight thousand sixty-one
Scientific notation
2.1538061 × 10^7
Engineering notation
2.1538061 × 10^6
Prime Factorization
21538061
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21538061
Product of the distinct prime numbers
The prime factorization of 21538061 is 21538061.
Since it has a total of 1 prime factors.
2 , 2 , 62 , 75 , 688 , 372 , 4475 , 5767 , 6028 , 66111 , 415224 , 69200 , 2537597 , 6302 , 74414866 , 97901935 , 325299488 , 614025363 , 9565696486 , 5894359220
n×2
43076122
n×3
64614183
n×4
86152244
n×5
107690305
n÷2
10769030.5
n÷3
7179353.6666667
n÷3
5384515.25
n÷5
4307612.2
n2
463888071639721
n3
9.9912495841487E+21
n4
2.1519214300962E+29
n5
4.6348215028619E+36
2 √n
4640.9116561296
3 √n
278.22887574688
4 √n
68.124236921448
5 √n
29.284736491017
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21538062
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10769031
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4640.9117638671
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999071411
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21538061 can be divided by 2 positive divisors.
The sum of these divisors (counting 21538061) is 21538062, the average is 10769031.
Base
System
Value
2
Binary
1010010001010010100001101
3
Ternary
1111112020122222
4
Quaternary
1102022110031
5
Quinary
21003204221
6
Senary
2045345125
8
Octal
122122415
10
Decimal
21538061
12
Duodecimal
72681a5
16
Hexadecimal
148a50d
20
Vigesimal
6ec531
36
Base36
ctmvh
md5
83bb0b60b8d7904c2b84ecc895e94c32
sha1
745df6e78646a7169e020a3225f98aa448709374
sha256
9cc5d1e3dd8d1266c2e4fc7c10e4ad23f51efbd7655e2b5fbbfd8cf9d29d17f8
sha512
22695d1b95d78a2fd072811924cea56d8565e675d34726cf853c1fbf8e62df1c1a5f8074d8d0652cd886dd971219cad6da050c4886e21d94f25f6c0fd5f1a421
ripemd-160
12754e71be2b678517f4a837aa8ce676f4ffedae
Diameter
43076122
Circumference
135327628.42034
Area
1.4573473579513E+15
Volume
4.1851248391658E+22
Surface area
5.8293894318051E+15
Circumference
135327628.42034
Perimeter
86152244
Area
463888071639721
Diagonal
30459417.973419
Surface area
2783328429838326
Volume
9.9912495841487E+21
Space diagonal
37305015.948518
Perimeter
64614183
Area
2.0086942727629E+14
Altitude
18652507.974259
Surface area
2.0086942727629E+14
Volume
1.1774800555798E+21
Height
10153139.324473