20149921 is an odd 8-digits composite number following 20149920
and preceding 20149922 . In scientific notation, it is written as 2.0149921 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 18318100 positive integers (up to 20149921) that are relatively prime to 20149921.
20149921 has 4 divisors, whose sum is 21981744
The reverse of 20149921 is 12994102
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred forty-nine thousand nine hundred twenty-one
Scientific notation
2.0149921 × 10^7
Engineering notation
2.0149921 × 10^6
Prime Factorization
11 × 1831811
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20149921
Product of the distinct prime numbers
The prime factorization of 20149921 is 11 × 1831811.
Since it has a total of 2 prime factors.
7 , 10 , 100 , 26 , 157 , 527 , 6197 , 6349 , 19924 , 70522 , 632254 , 688097 , 9862307 , 1948453 , 96555758 , 87982200 , 889319860 , 8195873 , 263485210 , 2707067191
n×2
40299842
n×3
60449763
n×4
80599684
n×5
100749605
n÷2
10074960.5
n÷3
6716640.3333333
n÷3
5037480.25
n÷5
4029984.2
n2
406019316306241
n3
8.1812571480448E+21
n4
1.6485168521379E+29
n5
3.3217484337747E+36
2 √n
4488.8663379522
3 √n
272.11832096339
4 √n
66.999002514606
5 √n
28.89712719473
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20149920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20149921 can be divided by 4 positive divisors.
The sum of these divisors (counting 20149921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110111011010100001
3
Ternary
1101220201111101
4
Quaternary
1030313122201
5
Quinary
20124244141
6
Senary
1555514401
8
Octal
114673241
10
Decimal
20149921
12
Duodecimal
68b8a01
16
Hexadecimal
13376a1
20
Vigesimal
65ieg1
36
Base36
bzvs1
md5
c25fcef316a7660e0d336ae407e8ebf7
sha1
edc8ac1d0a51388c635ddce54e6a90d4b21c6ad8
sha256
050a69380b18f7c191eec4623f6bdb3086e245d98c7ce41d90f4e7eb8bb18bbd
sha512
d31e4c00caab0c8730468f8feb858f3056b0a5b55dd0d0c857404b00e4301fbb6afd0d20011a1df3940c6def3b4cc17ca45de789451f21e9b40410544799b9f2
ripemd-160
a36662f92d05e735dffcec3bb61f48f082e67c0d
Diameter
40299842
Circumference
126605687.56803
Area
1.2755473013232E+15
Volume
3.4269569804569E+22
Surface area
5.1021892052929E+15
Circumference
126605687.56803
Perimeter
80599684
Area
406019316306241
Diagonal
28496291.558946
Surface area
2436115897837446
Volume
8.1812571480448E+21
Space diagonal
34900686.940499
Perimeter
60449763
Area
1.758115211742E+14
Altitude
17450343.47025
Surface area
1.758115211742E+14
Volume
9.6417040133556E+20
Height
9498763.8529821