168538961 is an odd 9-digits composite number following 168538960
and preceding 168538962 . In scientific notation, it is written as 1.68538961 × 10^8.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 166992624 positive integers (up to 168538961) that are relatively prime to 168538961.
168538961 has 4 divisors, whose sum is 170085300
The reverse of 168538961 is 169835861
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 47
Digital Root 2
Name
one hundred sixty-eight million five hundred thirty-eight thousand nine hundred sixty-one
Scientific notation
1.68538961 × 10^8
Engineering notation
1.68538961 × 10^6
Prime Factorization
109 × 1546229
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
168538961
Product of the distinct prime numbers
The prime factorization of 168538961 is 109 × 1546229.
Since it has a total of 2 prime factors.
3 , 4 , 77 , 98 , 660 , 191 , 7466 , 4183 , 12366 , 6523 , 244688 , 455879 , 805071 , 8392346 , 62972038 , 62035523 , 422666854 , 148381645 , 1708340107 , 1474543713
n×2
337077922
n×3
505616883
n×4
674155844
n×5
842694805
n÷2
84269480.5
n÷3
56179653.666667
n÷3
42134740.25
n÷5
33707792.2
n2
28405381374959521
n3
4.7874134637444E+24
n4
8.068656910569E+32
n5
1.3598830523728E+41
2 √n
12982.255620654
3 √n
552.37426593611
4 √n
113.93970168758
5 √n
44.191634245952
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
-168538960
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 168538961 can be divided by 4 positive divisors.
The sum of these divisors (counting 168538961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010111011001101010001
3
Ternary
102202010122222202
4
Quaternary
22002323031101
5
Quinary
321121221321
6
Senary
24420212545
8
Octal
1202731521
10
Decimal
168538961
12
Duodecimal
4853a155
16
Hexadecimal
a0bb351
20
Vigesimal
2cd7781
36
Base36
2scdht
md5
cfb1069cc66f06d75304f0ec7ff7ab47
sha1
ec4cffc6054dbe69ddcbfadee0e5e3b1ae1634fd
sha256
0469eb072cab71b03b546cad05e86ddb069725b8290ab6152acc31737628d63c
sha512
67e8fe224b5e8fa16debc7721472854890e09be9d0af299706e8e38fae4ce389a03174ccc1cc0359589609b83d801accc515fe4fb3441544d48d997856cc1bb6
ripemd-160
967115cd051be32546268e0a6bb312c1c43762d0
Diameter
337077922
Circumference
1058961523.4425
Area
8.9238137449989E+16
Volume
2.0053470623195E+25
Surface area
3.5695254979996E+17
Circumference
1058961523.4425
Perimeter
674155844
Area
28405381374959521
Diagonal
238350084.43447
Surface area
170432288249757126
Volume
4.7874134637444E+24
Space diagonal
291918043.50687
Perimeter
505616883
Area
1.229989093745E+16
Altitude
145959021.75343
Surface area
1.229989093745E+16
Volume
5.6420208742624E+23
Height
79450028.144823