221369987 is an odd 9-digits composite number following 221369986
and preceding 221369988 . In scientific notation, it is written as 2.21369987 × 10^8.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 221258856 positive integers (up to 221369987) that are relatively prime to 221369987.
221369987 has 4 divisors, whose sum is 221481120
The reverse of 221369987 is 789963122
Previous prime number is 2029
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 47
Digital Root 2
Name
two hundred twenty-one million three hundred sixty-nine thousand nine hundred eighty-seven
Scientific notation
2.21369987 × 10^8
Engineering notation
2.21369987 × 10^6
Prime Factorization
2029 × 109103
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
221369987
Product of the distinct prime numbers
The prime factorization of 221369987 is 2029 × 109103.
Since it has a total of 2 prime factors.
4 , 4 , 75 , 52 , 169 , 211 , 133 , 1678 , 3711 , 80685 , 700803 , 370933 , 6396716 , 6596719 , 56094615 , 49264789 , 123614234 , 144000346 , 210311942 , 1763156375
n×2
442739974
n×3
664109961
n×4
885479948
n×5
1106849935
n÷2
110684993.5
n÷3
73789995.666667
n÷3
55342496.75
n÷5
44273997.4
n2
49004671144380169
n3
1.0848163414171E+25
n4
2.4014577939688E+33
n5
5.3161068063193E+41
2 √n
14878.507552843
3 √n
604.93156523926
4 √n
121.97748789364
5 √n
46.668489868814
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
-221369986
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 221369987 can be divided by 4 positive divisors.
The sum of these divisors (counting 221369987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101001100011101011010000011
3
Ternary
120102112202112102
4
Quaternary
31030131122003
5
Quinary
423132314422
6
Senary
33544421015
8
Octal
1514353203
10
Decimal
221369987
12
Duodecimal
6217776b
16
Hexadecimal
d31d683
20
Vigesimal
393b4j7
36
Base36
3nsq6b
md5
6b11e5b1c10f81393af25c8cd77aace9
sha1
23f3243b556e43d5dae40215622564b1a930a619
sha256
525e529c29a146c6b6ba12234bd17fb9059d8b415775f426a0a060eb227f309f
sha512
eb6852aeeaf78077a23bd9dcd4af1de4e5965656ec2bdcec7a1844772eb65ca79e58b92be74ee73fd7188101202502d4328e2b23252e5cf33f81104ac9dd6ff1
ripemd-160
1ffc125c7d9ca5f0d66aeb597d7e56ae7e8f4c16
Diameter
442739974
Circumference
1390908649.7689
Area
1.5395271485877E+17
Volume
4.54406806492E+25
Surface area
6.1581085943507E+17
Circumference
1390908649.7689
Perimeter
885479948
Area
49004671144380169
Diagonal
313064437.91776
Surface area
294028026866281014
Volume
1.0848163414171E+25
Space diagonal
383424064.75486
Perimeter
664109961
Area
2.1219645057568E+16
Altitude
191712032.37743
Surface area
2.1219645057568E+16
Volume
1.27846831893E+24
Height
104354812.63925