221491618 is an even 9-digits composite number following 221491617
and preceding 221491619 . In scientific notation, it is written as 2.21491618 × 10^8.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 106449616 positive integers (up to 221491618) that are relatively prime to 221491618.
221491618 has 16 divisors, whose sum is 345228480
The reverse of 221491618 is 816194122
Previous prime number is 227
Is Prime? no
Number parity even
Number length 9
Sum of Digits 34
Digital Root 7
Name
two hundred twenty-one million four hundred ninety-one thousand six hundred eighteen
Scientific notation
2.21491618 × 10^8
Engineering notation
2.21491618 × 10^6
Prime Factorization
2 × 29 × 227 × 16823
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
221491618
Product of the distinct prime numbers
The prime factorization of 221491618 is 2 × 29 × 227 × 16823.
Since it has a total of 4 prime factors.
7 , 7 , 91 , 32 , 405 , 793 , 3178 , 5518 , 76193 , 65193 , 804199 , 350653 , 1968284 , 156860 , 4187744 , 67285344 , 2341097 , 442393647 , 4112418737 , 7461903907
n×2
442983236
n×3
664474854
n×4
885966472
n×5
1107458090
n÷2
110745809
n÷3
73830539.333333
n÷3
55372904.5
n÷5
44298323.6
n2
49058536844257924
n3
1.0866054702347E+25
n4
2.4067400372994E+33
n5
5.3307274496683E+41
2 √n
14882.594464676
3 √n
605.04233749662
4 √n
121.99423947333
5 √n
46.673617111258
1 , 2 , 29 , 58 , 227 , 454 , 6583 , 13166 , 16823 , 33646 , 487867 , 975734 , 3818821 , 7637642 , 110745809 , 221491618
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-221491617
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 221491618 can be divided by 16 positive divisors.
The sum of these divisors (counting 221491618) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1101001100111011000110100010
3
Ternary
120102202221101021
4
Quaternary
31030323012202
5
Quinary
423200212433
6
Senary
33551200054
8
Octal
1514730642
10
Decimal
221491618
12
Duodecimal
6221602a
16
Hexadecimal
d33b1a2
20
Vigesimal
394690i
36
Base36
3nvc0y
md5
1ed5ab1e75b4bb071e64b7817d500fa6
sha1
47a04e50804a5f59e6a98d3de3fa8d7bbff5fcd5
sha256
7afc989cb1e2410b9d8209aa3e2b28822a34a6346e4c14f62a689b154634f5ba
sha512
ac847646b66a9cc1ab6594ac9c3619de6b60e1ed7a7303e427b6e46843666ae93828922b5a9affa444fe68f03a37c3b923c57a5c282787e2f9a2af14a662b7cc
ripemd-160
52699faf52c4160c444ec79e6126c5e45d2f4cc1
Diameter
442983236
Circumference
1391672879.881
Area
1.5412193894578E+17
Volume
4.5515623501865E+25
Surface area
6.1648775578314E+17
Circumference
1391672879.881
Perimeter
885966472
Area
49058536844257924
Diagonal
313236450.12756
Surface area
294351221065547544
Volume
1.0866054702347E+25
Space diagonal
383634735.82664
Perimeter
664474854
Area
2.1242969589811E+16
Altitude
191817367.91332
Surface area
2.1242969589811E+16
Volume
1.2805768274623E+24
Height
104412150.04252