20121994 is an even 8-digits composite number following 20121993
and preceding 20121995 . In scientific notation, it is written as 2.0121994 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 10060996 positive integers (up to 20121994) that are relatively prime to 20121994.
20121994 has 4 divisors, whose sum is 30182994
The reverse of 20121994 is 49912102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred twenty-one thousand nine hundred ninety-four
Scientific notation
2.0121994 × 10^7
Engineering notation
2.0121994 × 10^6
Prime Factorization
2 × 10060997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121994
Product of the distinct prime numbers
The prime factorization of 20121994 is 2 × 10060997.
Since it has a total of 2 prime factors.
7 , 4 , 90 , 27 , 709 , 364 , 1076 , 6341 , 63211 , 83014 , 414851 , 414905 , 4588367 , 7107334 , 40565968 , 37418978 , 982245592 , 45746255 , 6858511633 , 8582852762
n×2
40243988
n×3
60365982
n×4
80487976
n×5
100609970
n÷2
10060997
n÷3
6707331.3333333
n÷3
5030498.5
n÷5
4024398.8
n2
404894642536036
n3
8.1472875677423E+21
n4
1.6393967155438E+29
n5
3.2987930873793E+36
2 √n
4485.7545630585
3 √n
271.99254773412
4 √n
66.97577594219
5 √n
28.88911269346
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
-20121993
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 20121994 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121994) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000100110001010
3
Ternary
1101212022012001
4
Quaternary
1030300212022
5
Quinary
20122400434
6
Senary
1555141214
8
Octal
114604612
10
Decimal
20121994
12
Duodecimal
68a480a
16
Hexadecimal
133098a
20
Vigesimal
65f4je
36
Base36
bza8a
md5
2a2ca3281a0326a8a003a14e47ed53db
sha1
6449a8405a1c33b8a31352572f42d3f22c13752b
sha256
31a91c4a33f2efefea783c1dc12c104580ce9a79d591e1dc8754855bf4a9a91e
sha512
b50af22993bcce1040d8a063f4c63e60e11553a23090147fe272c2b756fa9f7a13658e5c9ad1a1beaf844ea24bf748280b5d4a82f3af4ebc27ad7f1a30b11657
ripemd-160
d15d08a301b731d0fc7f689d4fa65b7ce0a89b2c
Diameter
40243988
Circumference
126430217.05196
Area
1.2720140344691E+15
Volume
3.4127278359337E+22
Surface area
5.0880561378763E+15
Circumference
126430217.05196
Perimeter
80487976
Area
404894642536036
Diagonal
28456796.81679
Surface area
2429367855216216
Volume
8.1472875677423E+21
Space diagonal
34852315.957596
Perimeter
60365982
Area
1.7532452314621E+14
Altitude
17426157.978798
Surface area
1.7532452314621E+14
Volume
9.6016704790457E+20
Height
9485598.93893