20121639 is an odd 8-digits composite number following 20121638
and preceding 20121640 . In scientific notation, it is written as 2.0121639 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13403520 positive integers (up to 20121639) that are relatively prime to 20121639.
20121639 has 8 divisors, whose sum is 26850672
The reverse of 20121639 is 93612102
Previous prime number is 3581
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred twenty-one thousand six hundred thirty-nine
Scientific notation
2.0121639 × 10^7
Engineering notation
2.0121639 × 10^6
Prime Factorization
3 × 3581 × 1873
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121639
Product of the distinct prime numbers
The prime factorization of 20121639 is 3 × 3581 × 1873.
Since it has a total of 3 prime factors.
5 , 7 , 78 , 55 , 675 , 187 , 4332 , 6286 , 99195 , 79719 , 504297 , 723206 , 456130 , 2721695 , 40138085 , 83473713 , 42450 , 499489909 , 5337717056 , 4725371259
n×2
40243278
n×3
60364917
n×4
80486556
n×5
100608195
n÷2
10060819.5
n÷3
6707213
n÷3
5030409.75
n÷5
4024327.8
n2
404880356046321
n3
8.1468563625555E+21
n4
1.639281027122E+29
n5
3.2985021047297E+36
2 √n
4485.7149931756
3 √n
271.99094819214
4 √n
66.975480537101
5 √n
28.889010758161
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
-20121638
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 20121639 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121639) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000100000100111
3
Ternary
1101212021200220
4
Quaternary
1030300200213
5
Quinary
20122343024
6
Senary
1555135423
8
Octal
114604047
10
Decimal
20121639
12
Duodecimal
68a4573
16
Hexadecimal
1330827
20
Vigesimal
65f41j
36
Base36
bz9yf
md5
6186883aeee873620e362a9a9b34e463
sha1
135241b79bc6394d31de409783f2f4bf743ea75d
sha256
ef8364d4a131a384f242c6f9676188c90ae1f613f8391b81dd027175d4847086
sha512
7d5705b7e733e9467b1d8d0136a5a2e115c32def5b9efc572ce4f9b2e62036261dd982274b34c9511d7fcbef68e3a38e98712c1f8be653413bce4fc0f09e5ee1
ripemd-160
58e44801c89af515f32d6bbd240f5df11122d787
Diameter
40243278
Circumference
126427986.52117
Area
1.2719691521379E+15
Volume
3.4125472131274E+22
Surface area
5.0878766085518E+15
Circumference
126427986.52117
Perimeter
80486556
Area
404880356046321
Diagonal
28456294.770975
Surface area
2429282136277926
Volume
8.1468563625555E+21
Space diagonal
34851701.079559
Perimeter
60364917
Area
1.753183369147E+14
Altitude
17425850.53978
Surface area
1.753183369147E+14
Volume
9.6011622988597E+20
Height
9485431.5903251