168397905 is an odd 9-digits composite number following 168397904
and preceding 168397906 . In scientific notation, it is written as 1.68397905 × 10^8.
The sum of its digits is 48. It has a total of 5 prime factors and 32 positive divisors.
There are 82621440 positive integers (up to 168397905) that are relatively prime to 168397905.
168397905 has 32 divisors, whose sum is 291150720
The reverse of 168397905 is 509793861
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 48
Digital Root 3
Name
one hundred sixty-eight million three hundred ninety-seven thousand nine hundred five
Scientific notation
1.68397905 × 10^8
Engineering notation
1.68397905 × 10^6
Prime Factorization
3 × 5 × 13 × 331 × 2609
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
168397905
Product of the distinct prime numbers
The prime factorization of 168397905 is 3 × 5 × 13 × 331 × 2609.
Since it has a total of 5 prime factors.
10 , 8 , 58 , 51 , 516 , 853 , 5772 , 8453 , 54176 , 6355 , 497579 , 750531 , 3092984 , 1508276 , 81955097 , 72775021 , 529995598 , 484090449 , 1350947708 , 2130058278
n×2
336795810
n×3
505193715
n×4
673591620
n×5
841989525
n÷2
84198952.5
n÷3
56132635
n÷3
42099476.25
n÷5
33679581
n2
28357854408389025
n3
4.7754032726677E+24
n4
8.0416790664739E+32
n5
1.3542019074766E+41
2 √n
12976.821837415
3 √n
552.22012264312
4 √n
113.91585419692
5 √n
44.184234671418
1 , 3 , 5 , 13 , 15 , 39 , 65 , 195 , 331 , 993 , 1655 , 2609 , 4303 , 4965 , 7827 , 12909 , 13045 , 21515 , 33917 , 39135 , 64545 , 101751 , 169585 , 508755 , 863579 , 2590737 , 4317895 , 11226527 , 12953685 , 33679581 , 56132635 , 168397905
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-168397904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 168397905 can be divided by 32 positive divisors.
The sum of these divisors (counting 168397905) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000010011000110001010001
3
Ternary
102201212111111110
4
Quaternary
22002120301101
5
Quinary
321102213110
6
Senary
24413203533
8
Octal
1202306121
10
Decimal
168397905
12
Duodecimal
484905a9
16
Hexadecimal
a098c51
20
Vigesimal
2cc9ef5
36
Base36
2s9cnl
md5
bd16adb113ffab917fcbdc7a0538754c
sha1
3431f34e23326bd8662f2220da8f9046d7385d04
sha256
caf4710bb0a110e25f515845c4e3eb7ab86eec0fea8c26bd9d3e6ca4d38c98dd
sha512
a802e5b124802989795fbf51d924b3a17c9e3c8a5077d1e0f0f98e39f3060a85f3fc0402cf499608db043806f423d69027be222f48ba417fb00d390a5a345a6c
ripemd-160
ce836a940ec45f1b5a778b38fd0fe7aa772e3d55
Diameter
336795810
Circumference
1058075242.4558
Area
8.9088827080964E+16
Volume
2.0003162452455E+25
Surface area
3.5635530832386E+17
Circumference
1058075242.4558
Perimeter
673591620
Area
28357854408389025
Diagonal
238150601.12622
Surface area
170147126450334150
Volume
4.7754032726677E+24
Space diagonal
291673727.34816
Perimeter
505193715
Area
1.2279311157243E+16
Altitude
145836863.67408
Surface area
1.2279311157243E+16
Volume
5.6278667283396E+23
Height
79383533.708739