20121893 is an odd 8-digits composite number following 20121892
and preceding 20121894 . In scientific notation, it is written as 2.0121893 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 16919280 positive integers (up to 20121893) that are relatively prime to 20121893.
20121893 has 16 divisors, whose sum is 23654400
The reverse of 20121893 is 39812102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred twenty-one thousand eight hundred ninety-three
Scientific notation
2.0121893 × 10^7
Engineering notation
2.0121893 × 10^6
Prime Factorization
43 × 11 × 19 × 2239
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121893
Product of the distinct prime numbers
The prime factorization of 20121893 is 43 × 11 × 19 × 2239.
Since it has a total of 4 prime factors.
3 , 3 , 38 , 86 , 542 , 930 , 7684 , 6710 , 6951 , 37811 , 626788 , 241569 , 7642396 , 1009011 , 75599125 , 94118473 , 956870801 , 453871857 , 5695202196 , 4488884112
n×2
40243786
n×3
60365679
n×4
80487572
n×5
100609465
n÷2
10060946.5
n÷3
6707297.6666667
n÷3
5030473.25
n÷5
4024378.6
n2
404890577903449
n3
8.1471648852814E+21
n4
1.6393638007499E+29
n5
3.2987102986763E+36
2 √n
4485.7433051837
3 √n
271.99209265507
4 √n
66.97569189776
5 √n
28.889083692296
1 , 11 , 19 , 43 , 209 , 473 , 817 , 2239 , 8987 , 24629 , 42541 , 96277 , 467951 , 1059047 , 1829263 , 20121893
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121892
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121893 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121893) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000100100100101
3
Ternary
1101212022001022
4
Quaternary
1030300210211
5
Quinary
20122400033
6
Senary
1555140525
8
Octal
114604445
10
Decimal
20121893
12
Duodecimal
68a4745
16
Hexadecimal
1330925
20
Vigesimal
65f4ed
36
Base36
bza5h
md5
be9a0cc9d8179498504de7a573f52c85
sha1
35a2e4bac92101e25ed8e90ac8cc7300f8b6a7b6
sha256
f51a9bdb9e8b1a2c5f769a6edbb7b2238d12dd62cfadc951e1eb01557be3d9a6
sha512
d5819a49cfaa7e5c0ff07f5658afdcba43a692238f2144bd84a6edc2df1dd4ae2e4b45c27b081648c4f758e11645e961aa2988ee60784f80150404f1a228c5b7
ripemd-160
9eeb6ad23ed15ce00cb61b9bd915a7b8e2fd0649
Diameter
40243786
Circumference
126429582.45024
Area
1.2720012650492E+15
Volume
3.4126764468246E+22
Surface area
5.0880050601968E+15
Circumference
126429582.45024
Perimeter
80487572
Area
404890577903449
Diagonal
28456653.98122
Surface area
2429343467420694
Volume
8.1471648852814E+21
Space diagonal
34852141.020465
Perimeter
60365679
Area
1.7532276310867E+14
Altitude
17426070.510232
Surface area
1.7532276310867E+14
Volume
9.601525896379E+20
Height
9485551.3270734