20120457 is an odd 8-digits composite number following 20120456
and preceding 20120458 . In scientific notation, it is written as 2.0120457 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 11115360 positive integers (up to 20120457) that are relatively prime to 20120457.
20120457 has 16 divisors, whose sum is 30722432
The reverse of 20120457 is 75402102
Previous prime number is 961
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred twenty thousand four hundred fifty-seven
Scientific notation
2.0120457 × 10^7
Engineering notation
2.0120457 × 10^6
Prime Factorization
3 × 7 × 961 × 997
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20120457
Product of the distinct prime numbers
The prime factorization of 20120457 is 3 × 7 × 961 × 997.
Since it has a total of 4 prime factors.
5 , 6 , 73 , 56 , 722 , 371 , 1805 , 4904 , 76038 , 52113 , 848218 , 719158 , 7820543 , 9681612 , 52931882 , 94684754 , 59579470 , 61712068 , 5163419762 , 4783323221
n×2
40240914
n×3
60361371
n×4
80481828
n×5
100602285
n÷2
10060228.5
n÷3
6706819
n÷3
5030114.25
n÷5
4024091.4
n2
404832789888849
n3
8.1454207411486E+21
n4
1.6388958776919E+29
n5
3.2975334034577E+36
2 √n
4485.5832396691
3 √n
271.9856222576
4 √n
66.974496934796
5 √n
28.888671346316
1 , 3 , 7 , 21 , 961 , 997 , 2883 , 2991 , 6727 , 6979 , 20181 , 20937 , 958117 , 2874351 , 6706819 , 20120457
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
-20120456
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 20120457 can be divided by 16 positive divisors.
The sum of these divisors (counting 20120457) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000001110001001
3
Ternary
1101212020002010
4
Quaternary
1030300032021
5
Quinary
20122323312
6
Senary
1555130133
8
Octal
114601611
10
Decimal
20120457
12
Duodecimal
68a3949
16
Hexadecimal
1330389
20
Vigesimal
65f12h
36
Base36
bz91l
md5
af0a16c5c10c5119d907392088ec335f
sha1
e54fba145ec23a6de46f87522e32a34227d73dde
sha256
a2c6d30f166798a802cbc914e497b0fe00090c807f9e806a82ed72cbaf5e4e64
sha512
fb5e5bc486195fc19ced0d754f4823ac558e8de5e6e8dd5904ce0666292fefea51387f08f009d89137e036fd4b34a9555627039dc7f049488e005d799bef18a3
ripemd-160
e1f66add89bc70d1599f0eaa7fd94319bde45d12
Diameter
40240914
Circumference
126420559.79614
Area
1.2718197186471E+15
Volume
3.4119458614387E+22
Surface area
5.0872788745883E+15
Circumference
126420559.79614
Perimeter
80481828
Area
404832789888849
Diagonal
28454623.170545
Surface area
2428996739333094
Volume
8.1454207411486E+21
Space diagonal
34849653.795505
Perimeter
60361371
Area
1.7529774016434E+14
Altitude
17424826.897752
Surface area
1.7529774016434E+14
Volume
9.5994704028062E+20
Height
9484874.3901816