20121869 is an odd 8-digits prime number following 20121868
and preceding 20121870 . In scientific notation, it is written as 2.0121869 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 20121868 positive integers (up to 20121869) that are relatively prime to 20121869.
20121869 has 2 divisors, whose sum is 20121870
The reverse of 20121869 is 96812102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred twenty-one thousand eight hundred sixty-nine
Scientific notation
2.0121869 × 10^7
Engineering notation
2.0121869 × 10^6
Prime Factorization
20121869
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20121869
Product of the distinct prime numbers
The prime factorization of 20121869 is 20121869.
Since it has a total of 1 prime factors.
9 , 5 , 32 , 32 , 760 , 961 , 9547 , 5090 , 60933 , 91603 , 167752 , 599104 , 3607317 , 2539962 , 4958685 , 11781570 , 248567986 , 989704962 , 5892564145 , 5305681739
n×2
40243738
n×3
60365607
n×4
80487476
n×5
100609345
n÷2
10060934.5
n÷3
6707289.6666667
n÷3
5030467.25
n÷5
4024373.8
n2
404889612053161
n3
8.1471357331945E+21
n4
1.6393559794856E+29
n5
3.2986906263576E+36
2 √n
4485.7406300409
3 √n
271.99198451726
4 √n
66.97567192676
5 √n
28.889076800913
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20121870
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10060935
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4485.7407415052
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999006057
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121869 can be divided by 2 positive divisors.
The sum of these divisors (counting 20121869) is 20121870, the average is 10060935.
Base
System
Value
2
Binary
1001100110000100100001101
3
Ternary
1101212022000102
4
Quaternary
1030300210031
5
Quinary
20122344434
6
Senary
1555140445
8
Octal
114604415
10
Decimal
20121869
12
Duodecimal
68a4725
16
Hexadecimal
133090d
20
Vigesimal
65f4d9
36
Base36
bza4t
md5
b7cb7077cf92ff0bb3a1131b7669e030
sha1
166804d9d0cef2ac4d462f34dc266b4968b8c5a8
sha256
4877bfad606c2cccd25fc98561aefaca357bc38add2a485b79d848fd94e86233
sha512
48069aa0ff391ea9f30e6bc718a825642a80556f7ccc0115bd2cf564db21a9e3d8c94a39bbc5e0c75d9c0c970aa706e52a5bbeb170fce9bc904949d346298b0d
ripemd-160
e5506d454d8dba470e0ed8b7e115a8f809d5cda5
Diameter
40243738
Circumference
126429431.65379
Area
1.271998230741E+15
Volume
3.412664235627E+22
Surface area
5.0879929229641E+15
Circumference
126429431.65379
Perimeter
80487476
Area
404889612053161
Diagonal
28456620.040095
Surface area
2429337672318966
Volume
8.1471357331945E+21
Space diagonal
34852099.451245
Perimeter
60365607
Area
1.7532234488323E+14
Altitude
17426049.725623
Surface area
1.7532234488323E+14
Volume
9.6014915403151E+20
Height
9485540.0133649