216442981 is an odd 9-digits prime number following 216442980
and preceding 216442982 . In scientific notation, it is written as 2.16442981 × 10^8.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 216442980 positive integers (up to 216442981) that are relatively prime to 216442981.
216442981 has 2 divisors, whose sum is 216442982
The reverse of 216442981 is 189244612
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 37
Digital Root 1
Name
two hundred sixteen million four hundred forty-two thousand nine hundred eighty-one
Scientific notation
2.16442981 × 10^8
Engineering notation
2.16442981 × 10^6
Prime Factorization
216442981
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
216442981
Product of the distinct prime numbers
The prime factorization of 216442981 is 216442981.
Since it has a total of 1 prime factors.
7 , 3 , 72 , 84 , 805 , 390 , 3845 , 6931 , 22531 , 56973 , 566549 , 415336 , 1695469 , 4025844 , 15539203 , 42686352 , 407321502 , 319004680 , 5365306405 , 6438750215
n×2
432885962
n×3
649328943
n×4
865771924
n×5
1082214905
n÷2
108221490.5
n÷3
72147660.333333
n÷3
54110745.25
n÷5
43288596.2
n2
46847564024166361
n3
1.0139826409979E+25
n4
2.1946942549984E+33
n5
4.7502616693542E+41
2 √n
14712.001257477
3 √n
600.40988751587
4 √n
121.29303878408
5 √n
46.45887630232
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
216442982
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
108221491
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
14712.001291463
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999907597
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 216442981 can be divided by 2 positive divisors.
The sum of these divisors (counting 216442981) is 216442982, the average is 108221491.
Base
System
Value
2
Binary
1100111001101010100001100101
3
Ternary
120002021102221201
4
Quaternary
30321222201211
5
Quinary
420402133411
6
Senary
33251042501
8
Octal
1471524145
10
Decimal
216442981
12
Duodecimal
605a0431
16
Hexadecimal
ce6a865
20
Vigesimal
37cf791
36
Base36
3kv4h1
md5
0aa6c735b102b3019c51b6d0e0cb928e
sha1
4567ea95c568df9f2fbef40b8b05c8a2f34309c9
sha256
17e0efaeb185b1c88cf899f835d20178eb723449e46ba8e3d518197944d084ea
sha512
271d00b9ee8ec48a205c5a797a6ed510db50fe571526983b84ee22c1acac5da546922569f0a7b37d63958a5e397b76fbe5b5d8a9f6db2307b0a7ed0761fd0161
ripemd-160
38193a08b668f38fbb7ce3478c9a298ddc89a9bc
Diameter
432885962
Circumference
1359951358.0614
Area
1.471759629769E+17
Volume
4.2473605544354E+25
Surface area
5.8870385190759E+17
Circumference
1359951358.0614
Perimeter
865771924
Area
46847564024166361
Diagonal
306096599.21066
Surface area
281085384144998166
Volume
1.0139826409979E+25
Space diagonal
374890240.03367
Perimeter
649328943
Area
2.0285590275173E+16
Altitude
187445120.01683
Surface area
2.0285590275173E+16
Volume
1.1949900024251E+24
Height
102032199.73689