221512985 is an odd 9-digits composite number following 221512984
and preceding 221512986 . In scientific notation, it is written as 2.21512985 × 10^8.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 177210384 positive integers (up to 221512985) that are relatively prime to 221512985.
221512985 has 4 divisors, whose sum is 265815588
The reverse of 221512985 is 589215122
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
two hundred twenty-one million five hundred twelve thousand nine hundred eighty-five
Scientific notation
2.21512985 × 10^8
Engineering notation
2.21512985 × 10^6
Prime Factorization
5 × 44302597
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
221512985
Product of the distinct prime numbers
The prime factorization of 221512985 is 5 × 44302597.
Since it has a total of 2 prime factors.
9 , 2 , 30 , 86 , 292 , 145 , 7678 , 9411 , 96197 , 54981 , 682921 , 971356 , 2272112 , 4513792 , 74295554 , 22678502 , 357697421 , 641044216 , 1386056780 , 2223190280
n×2
443025970
n×3
664538955
n×4
886051940
n×5
1107564925
n÷2
110756492.5
n÷3
73837661.666667
n÷3
55378246.25
n÷5
44302597
n2
49068002523610225
n3
1.0869199706992E+25
n4
2.407668871657E+33
n5
5.3332991865233E+41
2 √n
14883.312299351
3 √n
605.06179274591
4 √n
121.99718152216
5 √n
46.674517584789
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
-221512984
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 221512985 can be divided by 4 positive divisors.
The sum of these divisors (counting 221512985) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101001101000000010100011001
3
Ternary
120102211000200122
4
Quaternary
31031000110121
5
Quinary
423201403420
6
Senary
33551443025
8
Octal
1515002431
10
Decimal
221512985
12
Duodecimal
62226475
16
Hexadecimal
d340519
20
Vigesimal
3949295
36
Base36
3nvsih
md5
ef24056daa544b9d3c79aa1cfce66e2a
sha1
81291eb3fa4098feba66c1c0d796c04c56019e33
sha256
11b2481f371d6c3ace8b2e5bd7147ee369ff2c208ccb9a2a2e93f11d67313380
sha512
2ec19a89956b219c49892f38d441c9d0d77183256933b87b784e4bdc2bdb11d098703a59eed25a5660055a27d7a7a81b21d181e606f1bba231a4c9781d0f056d
ripemd-160
dc246fc6c3c913411a972d2a209c5dd98467277a
Diameter
443025970
Circumference
1391807132.7015
Area
1.541516762545E+17
Volume
4.5528797266517E+25
Surface area
6.16606705018E+17
Circumference
1391807132.7015
Perimeter
886051940
Area
49068002523610225
Diagonal
313266667.62875
Surface area
294408015141661350
Volume
1.0869199706992E+25
Space diagonal
383671744.55624
Perimeter
664538955
Area
2.1247068349203E+16
Altitude
191835872.27812
Surface area
2.1247068349203E+16
Volume
1.2809474698142E+24
Height
104422222.54292