20121658 is an even 8-digits composite number following 20121657
and preceding 20121659 . In scientific notation, it is written as 2.0121658 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 10051776 positive integers (up to 20121658) that are relatively prime to 20121658.
20121658 has 8 divisors, whose sum is 30209652
The reverse of 20121658 is 85612102
Previous prime number is 1297
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty-one thousand six hundred fifty-eight
Scientific notation
2.0121658 × 10^7
Engineering notation
2.0121658 × 10^6
Prime Factorization
2 × 1297 × 7757
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121658
Product of the distinct prime numbers
The prime factorization of 20121658 is 2 × 1297 × 7757.
Since it has a total of 3 prime factors.
1 , 8 , 31 , 74 , 459 , 466 , 7037 , 5759 , 48112 , 40516 , 578593 , 300256 , 4225969 , 1414932 , 42214558 , 65441617 , 915524322 , 929913809 , 9710580962 , 981675714
n×2
40243316
n×3
60364974
n×4
80486632
n×5
100608290
n÷2
10060829
n÷3
6707219.3333333
n÷3
5030414.5
n÷5
4024331.6
n2
404881120668964
n3
8.1468794407576E+21
n4
1.6392872187416E+29
n5
3.2985176779289E+36
2 √n
4485.7171110091
3 √n
271.9910338019
4 √n
66.975496347613
5 √n
28.889016213889
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121657
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121658 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121658) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000100000111010
3
Ternary
1101212021201121
4
Quaternary
1030300200322
5
Quinary
20122343113
6
Senary
1555135454
8
Octal
114604072
10
Decimal
20121658
12
Duodecimal
68a458a
16
Hexadecimal
133083a
20
Vigesimal
65f42i
36
Base36
bz9yy
md5
9a183f10cdd516a6d275ab1690c6de41
sha1
147863ef2efdac6ffcf56a902a9aa5e98f644a1a
sha256
c6b661a89ed252527c58727f0b461f29224d57e1c2c9eedbbab2bb5c27ecd084
sha512
1726011f9f554edd4a10e21cc16ed17bde1d25cf34f77e28f3a824895693dde3c65f172dc58d1564034b0ce399c581b8d21036571820237cd135d7076fa24a7c
ripemd-160
329d30515eaaf5fec74ee9075b3cc3aa5d599f74
Diameter
40243316
Circumference
126428105.90169
Area
1.2719715542708E+15
Volume
3.4125568801021E+22
Surface area
5.0878862170833E+15
Circumference
126428105.90169
Perimeter
80486632
Area
404881120668964
Diagonal
28456321.641033
Surface area
2429286724013784
Volume
8.1468794407576E+21
Space diagonal
34851733.988525
Perimeter
60364974
Area
1.7531866800602E+14
Altitude
17425866.994262
Surface area
1.7531866800602E+14
Volume
9.6011894967816E+20
Height
9485440.547011