168991620 is an even 9-digits composite number following 168991619
and preceding 168991621 . In scientific notation, it is written as 1.68991620 × 10^8.
The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors.
There are 38626560 positive integers (up to 168991620) that are relatively prime to 168991620.
168991620 has 24 divisors, whose sum is 371782488
The reverse of 168991620 is 026199861
Previous prime number is 21
Is Prime? no Number parity even Number length 9 Sum of Digits 42 Digital Root 6
Name
one hundred sixty-eight million nine hundred ninety-one thousand six hundred twenty
Scientific notation
1.68991620 × 10^8
Engineering notation
1.68991620 × 10^6
Prime Factorization
2 × 2 × 5 × 21 × 402361
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
84495810 Product of the distinct prime numbers
The prime factorization of 168991620 is 2 × 2 × 5 × 21 × 402361.
Since it has a total of 5 prime factors.
7 , 6 , 75 , 57 , 213 , 16 , 27 , 2798 , 76577 , 66083 , 397655 , 26166 , 7592918 , 9241313 , 2151755 , 18913742 , 634917413 , 633232516 , 96183600 , 6702389594
n×2
337983240
n×3
506974860
n×4
675966480
n×5
844958100
n÷2
84495810
n÷3
56330540
n÷3
42247905
n÷5
33798324
n2
28558167630224400
n3
4.8260910120632E+24
n4
8.15568938396E+32
n5
1.3782431612122E+41
2 √n12999.677688312
3 √n552.86834292632
4 √n114.0161290709
5 √n44.215346609116
1 , 2 , 4 , 5 , 10 , 20 , 21 , 42 , 84 , 105 , 210 , 420 , 402361 , 804722 , 1609444 , 2011805 , 4023610 , 8047220 , 8449581 , 16899162 , 33798324 , 42247905 , 84495810 , 168991620
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-168991619 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 168991620 can be divided by 24 positive divisors.
The sum of these divisors (counting 168991620) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000100101001101110000100
3
Ternary
102202222122220220
4
Quaternary
22010221232010
5
Quinary
321230212440
6
Senary
24434024340
8
Octal
1204515604
10
Decimal
168991620
12
Duodecimal
487180b0
16
Hexadecimal
a129b84
20
Vigesimal
2cg3j10
36
Base36
2sm2ro
md5
5e7abb39334537526a35b87e3c7d98c8
sha1
11ca35dd46956c05417c7fe6d97c515c8de83124
sha256
20b5f32fe4803382e65a97d6e09ade367b7ea5d113948afbd7e8dc74416cb7d5
sha512
56eac8a7996a5677c3896d9e4c2eeb09c2dde16af6768276a89c5d009cd18ca8479b3457b97215d86e6bcbef49eb246b7026e2483b528023d697dc964834ea47
ripemd-160
959da74a2a8aae9f5b6e33d5874f4446b099f24d
Diameter
337983240
Circumference
1061805663.8205
Area
8.9718129627099E+16
Volume
2.0215482758738E+25
Surface area
3.588725185084E+17
Circumference
1061805663.8205
Perimeter
675966480
Area
28558167630224400
Diagonal
238990240.9314
Surface area
171349005781346400
Volume
4.8260910120632E+24
Space diagonal
292702071.89337
Perimeter
506974860
Area
1.2366049326654E+16
Altitude
146351035.94669
Surface area
1.2366049326654E+16
Volume
5.6876028020889E+23
Height
79663413.6438