20121705 is an odd 8-digits composite number following 20121704
and preceding 20121706 . In scientific notation, it is written as 2.0121705 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 10656000 positive integers (up to 20121705) that are relatively prime to 20121705.
20121705 has 8 divisors, whose sum is 20713800
The reverse of 20121705 is 50712102
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred twenty-one thousand seven hundred five
Scientific notation
2.0121705 × 10^7
Engineering notation
2.0121705 × 10^6
Prime Factorization
45 × 149 × 3001
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121705
Product of the distinct prime numbers
The prime factorization of 20121705 is 45 × 149 × 3001.
Since it has a total of 3 prime factors.
8 , 2 , 69 , 56 , 636 , 615 , 2705 , 947 , 86402 , 18668 , 209193 , 986059 , 7413202 , 530399 , 83013866 , 36595901 , 189753922 , 629350827 , 1661334883 , 4654107266
n×2
40243410
n×3
60365115
n×4
80486820
n×5
100608525
n÷2
10060852.5
n÷3
6707235
n÷3
5030426.25
n÷5
4024341
n2
404883012107025
n3
8.146936529129E+21
n4
1.6393025349286E+29
n5
3.2985562013585E+36
2 √n
4485.7223498563
3 √n
271.9912455732
4 √n
66.975535457779
5 √n
28.889029709621
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121704
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121705 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121705) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000100001101001
3
Ternary
1101212021210100
4
Quaternary
1030300201221
5
Quinary
20122343310
6
Senary
1555140013
8
Octal
114604151
10
Decimal
20121705
12
Duodecimal
68a4609
16
Hexadecimal
1330869
20
Vigesimal
65f455
36
Base36
bza09
md5
9c2eddbef4a9b7a46ec3c297a6b1b1a0
sha1
52dda8b35265f16e0b4af7480953be6e27d360a2
sha256
1b6b44da85e74a5528890a342e0761a5332300d3af40d8dcd87951f15d65cc6a
sha512
14b787f9513159628bfb7101ac4a44d716e0a33473c4449abb978fe251ee83ceb13d8401621d2be5c3597ced2e7fc9b72ce5d8fbe2f8b7561e94f9d78b696ae0
ripemd-160
8ee3c75b84a01b3f154de7f155c60f73fb16cdc0
Diameter
40243410
Circumference
126428401.2114
Area
1.2719774963987E+15
Volume
3.4125807932232E+22
Surface area
5.0879099855949E+15
Circumference
126428401.2114
Perimeter
80486820
Area
404883012107025
Diagonal
28456388.109071
Surface area
2429298072642150
Volume
8.146936529129E+21
Space diagonal
34851815.394913
Perimeter
60365115
Area
1.7531948702272E+14
Altitude
17425907.697456
Surface area
1.7531948702272E+14
Volume
9.6012567760725E+20
Height
9485462.7030235