20121657 is an odd 8-digits composite number following 20121656
and preceding 20121658 . In scientific notation, it is written as 2.0121657 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 13414436 positive integers (up to 20121657) that are relatively prime to 20121657.
20121657 has 4 divisors, whose sum is 26828880
The reverse of 20121657 is 75612102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred twenty-one thousand six hundred fifty-seven
Scientific notation
2.0121657 × 10^7
Engineering notation
2.0121657 × 10^6
Prime Factorization
3 × 6707219
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20121657
Product of the distinct prime numbers
The prime factorization of 20121657 is 3 × 6707219.
Since it has a total of 2 prime factors.
9 , 7 , 59 , 74 , 405 , 920 , 1253 , 8746 , 14295 , 84197 , 514178 , 909909 , 8047569 , 7037959 , 35341125 , 21340053 , 177204911 , 212078018 , 4391539923 , 4848503306
n×2
40243314
n×3
60364971
n×4
80486628
n×5
100608285
n÷2
10060828.5
n÷3
6707219
n÷3
5030414.25
n÷5
4024331.4
n2
404881080425649
n3
8.1468782261143E+21
n4
1.6392868928664E+29
n5
3.2985168582854E+36
2 √n
4485.7169995442
3 √n
271.99102929613
4 √n
66.975495515481
5 √n
28.889015926746
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
-20121656
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 20121657 can be divided by 4 positive divisors.
The sum of these divisors (counting 20121657) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000100000111001
3
Ternary
1101212021201120
4
Quaternary
1030300200321
5
Quinary
20122343112
6
Senary
1555135453
8
Octal
114604071
10
Decimal
20121657
12
Duodecimal
68a4589
16
Hexadecimal
1330839
20
Vigesimal
65f42h
36
Base36
bz9yx
md5
8cc4c4bbd3426cda60e491a9478f99d4
sha1
6dace1e57c0b60c38dea6c2599a67f2d7e025ef5
sha256
1bc3d09811a3c9230611ef424dbfe670c0c93bb69257f0df3d39e85c11c627c8
sha512
358cdaf01845fd4004ca81d4fb11f33d9ba7df7adabf70bc162bdde58d25e2c9ac7d54b50c75c19d683a1931d5137ba2106c4323297ac4c636dbb6ca2be3f4bf
ripemd-160
4b543337a68324803894798592752176a9674c3e
Diameter
40243314
Circumference
126428099.61851
Area
1.2719714278427E+15
Volume
3.4125563713135E+22
Surface area
5.0878857113709E+15
Circumference
126428099.61851
Perimeter
80486628
Area
404881080425649
Diagonal
28456320.22682
Surface area
2429286482553894
Volume
8.1468782261143E+21
Space diagonal
34851732.256474
Perimeter
60364971
Area
1.7531865058015E+14
Altitude
17425866.128237
Surface area
1.7531865058015E+14
Volume
9.6011880653108E+20
Height
9485440.0756065