20121697 is an odd 8-digits composite number following 20121696
and preceding 20121698 . In scientific notation, it is written as 2.0121697 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 19472580 positive integers (up to 20121697) that are relatively prime to 20121697.
20121697 has 4 divisors, whose sum is 20770816
The reverse of 20121697 is 79612102
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred twenty-one thousand six hundred ninety-seven
Scientific notation
2.0121697 × 10^7
Engineering notation
2.0121697 × 10^6
Prime Factorization
31 × 649087
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121697
Product of the distinct prime numbers
The prime factorization of 20121697 is 31 × 649087.
Since it has a total of 2 prime factors.
5 , 10 , 87 , 100 , 450 , 712 , 3173 , 665 , 81183 , 85701 , 731051 , 736774 , 7343220 , 6074445 , 958982 , 7722708 , 191654749 , 988619664 , 7494734833 , 7503909193
n×2
40243394
n×3
60365091
n×4
80486788
n×5
100608485
n÷2
10060848.5
n÷3
6707232.3333333
n÷3
5030424.25
n÷5
4024339.4
n2
404882690159809
n3
8.1469268119406E+21
n4
1.6392999279104E+29
n5
3.2985496441536E+36
2 √n
4485.721458138
3 √n
271.99120952704
4 √n
66.975528800735
5 √n
28.889027412477
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
-20121696
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 20121697 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121697) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000100001100001
3
Ternary
1101212021210001
4
Quaternary
1030300201201
5
Quinary
20122343242
6
Senary
1555140001
8
Octal
114604141
10
Decimal
20121697
12
Duodecimal
68a4601
16
Hexadecimal
1330861
20
Vigesimal
65f44h
36
Base36
bza01
md5
01dfc1db5235172a8cc026697211e969
sha1
52f0011b3c1410159d666abb6c29863e63e10b2c
sha256
7b228debf05a134f1f1bc2abfd206c884cc82d705b532e81ec5ec2a15ed0ea6f
sha512
6916ec28842a89aa951fdf5ce419dc903183b2946a9f963435908f775ccfcf05fcebca9fd6737e0e7c90ec5c3d038bf6614ff3244b989a528dfc427804312e17
ripemd-160
bb698b120954bf98cb05e17b223d7d5f534af5d9
Diameter
40243394
Circumference
126428350.94592
Area
1.2719764849717E+15
Volume
3.4125767228968E+22
Surface area
5.0879059398869E+15
Circumference
126428350.94592
Perimeter
80486788
Area
404882690159809
Diagonal
28456376.795362
Surface area
2429296140958854
Volume
8.1469268119406E+21
Space diagonal
34851801.538506
Perimeter
60365091
Area
1.7531934761549E+14
Altitude
17425900.769253
Surface area
1.7531934761549E+14
Volume
9.6012453242561E+20
Height
9485458.9317873