198721661 is an odd 9-digits prime number following 198721660
and preceding 198721662 . In scientific notation, it is written as 1.98721661 × 10^8.
The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors.
There are 198721660 positive integers (up to 198721661) that are relatively prime to 198721661.
198721661 has 2 divisors, whose sum is 198721662
The reverse of 198721661 is 166127891
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 41 Digital Root 5
Name
one hundred ninety-eight million seven hundred twenty-one thousand six hundred sixty-one
Scientific notation
1.98721661 × 10^8
Engineering notation
1.98721661 × 10^6
Prime Factorization
198721661
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
198721661 Product of the distinct prime numbers
The prime factorization of 198721661 is 198721661.
Since it has a total of 1 prime factors.
9 , 7 , 64 , 4 , 569 , 536 , 7373 , 6132 , 61086 , 40377 , 781086 , 141236 , 8879881 , 3054972 , 68327698 , 31626966 , 152360390 , 195067355 , 204037390 , 5839896483
n×2
397443322
n×3
596164983
n×4
794886644
n×5
993608305
n÷2
99360830.5
n÷3
66240553.666667
n÷3
49680415.25
n÷5
39744332.2
n2
39490298550598921
n3
7.8475777213609E+24
n4
1.5594836796154E+33
n5
3.0990318711557E+41
2 √n14096.867063288
3 √n583.55492160243
4 √n118.73022809414
5 √n45.671896067627
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
198721662 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
99360831 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
14096.867098756 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999899357 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 198721661 can be divided by 2 positive divisors.
The sum of these divisors (counting 198721661) is 198721662, the average is 99360831.
Base
System
Value
2
Binary
1011110110000100000001111101
3
Ternary
111211221002212112
4
Quaternary
23312010001331
5
Quinary
401333043121
6
Senary
31415143405
8
Octal
1366040175
10
Decimal
198721661
12
Duodecimal
56674b65
16
Hexadecimal
bd8407d
20
Vigesimal
3220431
36
Base36
3abam5
md5
af8ed727a771016b2e0143c74c415368
sha1
21bfdc7797d7131ccb8935ffc0fa4d93382c45bb
sha256
f50e5295c8a1f85fe8471b608b871249b78d6d05c2e628c2d23b59499aff26cb
sha512
0cb2db30538c4240e02f83a279a214eb3411174096bffb0d3cb149f7c94275170ad1eeba4df10b8f995c46a07d7a90bd97ba800e336a70223e747828f4a328ec
ripemd-160
7d1df579a908db7becd8d62904b5a38a51177699
Diameter
397443322
Circumference
1248605020.6135
Area
1.2406243181463E+17
Volume
3.2871856690536E+25
Surface area
4.9624972725852E+17
Circumference
1248605020.6135
Perimeter
794886644
Area
39490298550598921
Diagonal
281034868.12351
Surface area
236941791303593526
Volume
7.8475777213609E+24
Space diagonal
344196013.41648
Perimeter
596164983
Area
1.7099800873925E+16
Altitude
172098006.70824
Surface area
1.7099800873925E+16
Volume
9.2484590377713E+23
Height
93678289.374503