20154921 is an odd 8-digits composite number following 20154920
and preceding 20154922 . In scientific notation, it is written as 2.0154921 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13395360 positive integers (up to 20154921) that are relatively prime to 20154921.
20154921 has 8 divisors, whose sum is 26955744
The reverse of 20154921 is 12945102
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred fifty-four thousand nine hundred twenty-one
Scientific notation
2.0154921 × 10^7
Engineering notation
2.0154921 × 10^6
Prime Factorization
3 × 331 × 20297
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20154921
Product of the distinct prime numbers
The prime factorization of 20154921 is 3 × 331 × 20297.
Since it has a total of 3 prime factors.
10 , 6 , 82 , 61 , 882 , 587 , 7151 , 3458 , 64850 , 16728 , 778642 , 79031 , 3457210 , 1810224 , 33847573 , 33843920 , 6862946 , 476398541 , 3484816596 , 4631515166
n×2
40309842
n×3
60464763
n×4
80619684
n×5
100774605
n÷2
10077460.5
n÷3
6718307
n÷3
5038730.25
n÷5
4030984.2
n2
406220840516241
n3
8.1873489491584E+21
n4
1.6501537126972E+29
n5
3.3258717717269E+36
2 √n
4489.423236898
3 √n
272.14082690905
4 √n
67.003158409869
5 √n
28.898561158636
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
-20154920
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 20154921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20154921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111000101000101001
3
Ternary
1101220222100120
4
Quaternary
1030320220221
5
Quinary
20124424141
6
Senary
1555553453
8
Octal
114705051
10
Decimal
20154921
12
Duodecimal
68bb889
16
Hexadecimal
1338a29
20
Vigesimal
65j761
36
Base36
bzzmx
md5
33d69b473f3b57329b5ec86682aeb003
sha1
fd1fb304148d617b1073afc8e725b1baa625321b
sha256
015bc42a09c41e5cecea8239f5ff07069c0f76beda71fcb8006d6593323313e5
sha512
b8b71accb1d841829b95f82a57f5adcaf9d5ac738bcf29084088eb197bf5381f897923e6debeb3663dfb1634dec82984b0f5b44da8e91d1d7903d21b49eea3b6
ripemd-160
eee1b787143d8cd1d52523d1d18d9c13acf59004
Diameter
40309842
Circumference
126637103.49457
Area
1.2761804083009E+15
Volume
3.4295087081403E+22
Surface area
5.1047216332036E+15
Circumference
126637103.49457
Perimeter
80619684
Area
406220840516241
Diagonal
28503362.626758
Surface area
2437325043097446
Volume
8.1873489491584E+21
Space diagonal
34909347.194537
Perimeter
60464763
Area
1.7589878371687E+14
Altitude
17454673.597268
Surface area
1.7589878371687E+14
Volume
9.6488832698175E+20
Height
9501120.8755861