21461857 is an odd 8-digits composite number following 21461856
and preceding 21461858 . In scientific notation, it is written as 2.1461857 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 21292740 positive integers (up to 21461857) that are relatively prime to 21461857.
21461857 has 4 divisors, whose sum is 21630976
The reverse of 21461857 is 75816412
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred sixty-one thousand eight hundred fifty-seven
Scientific notation
2.1461857 × 10^7
Engineering notation
2.1461857 × 10^6
Prime Factorization
127 × 168991
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21461857
Product of the distinct prime numbers
The prime factorization of 21461857 is 127 × 168991.
Since it has a total of 2 prime factors.
10 , 5 , 69 , 75 , 230 , 739 , 1607 , 1124 , 5701 , 59985 , 931857 , 859684 , 6862220 , 1731964 , 29729884 , 8308618 , 137480139 , 505605666 , 7351083835 , 3769601580
n×2
42923714
n×3
64385571
n×4
85847428
n×5
107309285
n÷2
10730928.5
n÷3
7153952.3333333
n÷3
5365464.25
n÷5
4292371.4
n2
460611305888449
n3
9.8855739795611E+21
n4
2.1216277511226E+29
n5
4.5534071401825E+36
2 √n
4632.6943564194
3 √n
277.90035332807
4 √n
68.063899068591
5 √n
29.263984585282
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
-21461856
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 21461857 can be divided by 4 positive divisors.
The sum of these divisors (counting 21461857) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110111101101100001
3
Ternary
1111101101010121
4
Quaternary
1101313231201
5
Quinary
20443234412
6
Senary
2044000241
8
Octal
121675541
10
Decimal
21461857
12
Duodecimal
7230081
16
Hexadecimal
1477b61
20
Vigesimal
6e2ech
36
Base36
cs02p
md5
5bacd32eacbfaadfc5b2fb8e601717d1
sha1
f4e912f2d222939db3da1a1d68ee7506fcc8420b
sha256
5dc036a79fc722d9c476baf71245d6e39c0fd64944c8dcfc2c46f652deadb6f7
sha512
d59d4a87ffcfa39eb033056efee14c7a70db3361f1b487fa4333b055c71e4062deaa3010ab9615c5212adf7e542c89e54296498ea160230a5374de20a0ee2149
ripemd-160
738cca9edb6693dd54650db2155632382357e8c8
Diameter
42923714
Circumference
134848824.56719
Area
1.4470530947396E+15
Volume
4.1408595454277E+22
Surface area
5.7882123789582E+15
Circumference
134848824.56719
Perimeter
85847428
Area
460611305888449
Diagonal
30351649.243112
Surface area
2763667835330694
Volume
9.8855739795611E+21
Space diagonal
37173026.748778
Perimeter
64385571
Area
1.9945054608486E+14
Altitude
18586513.374389
Surface area
1.9945054608486E+14
Volume
1.1650260661448E+21
Height
10117216.414371