221566991 is an odd 9-digits composite number following 221566990
and preceding 221566992 . In scientific notation, it is written as 2.21566991 × 10^8.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 221339232 positive integers (up to 221566991) that are relatively prime to 221566991.
221566991 has 4 divisors, whose sum is 221794752
The reverse of 221566991 is 199665122
Previous prime number is 977
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 41
Digital Root 5
Name
two hundred twenty-one million five hundred sixty-six thousand nine hundred ninety-one
Scientific notation
2.21566991 × 10^8
Engineering notation
2.21566991 × 10^6
Prime Factorization
977 × 226783
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
221566991
Product of the distinct prime numbers
The prime factorization of 221566991 is 977 × 226783.
Since it has a total of 2 prime factors.
10 , 3 , 70 , 74 , 928 , 138 , 7435 , 2099 , 27147 , 31290 , 992097 , 827341 , 3193530 , 2740408 , 50057204 , 74973613 , 834710442 , 82337343 , 8319668873 , 3922350384
n×2
443133982
n×3
664700973
n×4
886267964
n×5
1107834955
n÷2
110783495.5
n÷3
73855663.666667
n÷3
55391747.75
n÷5
44313398.2
n2
49091931500794081
n3
1.0877151545009E+25
n4
2.4100177384787E+33
n5
5.3398037857134E+41
2 √n
14885.126502654
3 √n
605.11096113806
4 √n
122.0046167268
5 √n
46.676793260148
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
-221566990
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 221566991 can be divided by 4 positive divisors.
The sum of these divisors (counting 221566991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101001101001101100000001111
3
Ternary
120102220202202212
4
Quaternary
31031031200033
5
Quinary
423210120431
6
Senary
33552541035
8
Octal
1515154017
10
Decimal
221566991
12
Duodecimal
6225177b
16
Hexadecimal
d34d80f
20
Vigesimal
394fh9b
36
Base36
3nwy6n
md5
dbf9c1f523ff2d3c5f8239ec89c0c985
sha1
ad3cc368d676a59cdc544362fb9a022605098d95
sha256
b33a4b8baae2d10413d2abb268c11e606216ece162fa23198ab0b430cc67a853
sha512
288b9c81c8fbb60be7ec8c1e11534dc122a924a724d1ce935b197bad380004c7576a24f64a58ec0354d39bfb6d29f9506426e5384c8e8a81e99856d12fcec1b5
ripemd-160
87478684349e141b8f07aed1939ccde7dd7fae17
Diameter
443133982
Circumference
1392146462.4072
Area
1.5422685135343E+17
Volume
4.5562105847711E+25
Surface area
6.1690740541371E+17
Circumference
1392146462.4072
Perimeter
886267964
Area
49091931500794081
Diagonal
313343043.6464
Surface area
294551589004764486
Volume
1.0877151545009E+25
Space diagonal
383765285.69216
Perimeter
664700973
Area
2.1257429900267E+16
Altitude
191882642.84608
Surface area
2.1257429900267E+16
Volume
1.2818846029116E+24
Height
104447681.21547