1272912121 is an odd 10-digits composite number following 1272912120
and preceding 1272912122 . In scientific notation, it is written as 1.272912121 × 10^9.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 1174995792 positive integers (up to 1272912121) that are relatively prime to 1272912121.
1272912121 has 4 divisors, whose sum is 1370828452
The reverse of 1272912121 is 1212192721
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 28
Digital Root 1
Name
one billion two hundred seventy-two million nine hundred twelve thousand one hundred twenty-one
Scientific notation
1.272912121 × 10^9
Engineering notation
1.272912121 × 10^9
Prime Factorization
13 × 97916317
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1272912121
Product of the distinct prime numbers
The prime factorization of 1272912121 is 13 × 97916317.
Since it has a total of 2 prime factors.
4 , 7 , 49 , 13 , 905 , 923 , 1882 , 6507 , 8711 , 5277 , 925177 , 909892 , 1323831 , 3734813 , 82577524 , 73144116 , 348311946 , 16016258 , 2324955277 , 5616319499
n×2
2545824242
n×3
3818736363
n×4
5091648484
n×5
6364560605
n÷2
636456060.5
n÷3
424304040.33333
n÷3
318228030.25
n÷5
254582424.2
n2
1620305267788718641
n3
2.0625062150884E+27
n4
2.6253891608239E+36
n5
3.3418896851547E+45
2 √n
35677.894010157
3 √n
1083.7592252305
4 √n
188.88592856578
5 √n
66.215503292212
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
-1272912120
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 1272912121 can be divided by 4 positive divisors.
The sum of these divisors (counting 1272912121) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001011110111110001100011111001
3
Ternary
10021201012122011101
4
Quaternary
1023313301203321
5
Quinary
10101331141441
6
Senary
330150531401
8
Octal
11367614371
10
Decimal
1272912121
12
Duodecimal
2b6366b61
16
Hexadecimal
4bdf18f9
20
Vigesimal
jhfe061
36
Base36
l1uxa1
md5
cb3de5c0ab8ade85149a501676b2a6ed
sha1
d2f78bc657df34d1b13d9142ba5f74992620ff7f
sha256
280c87a8a4acaa935a80fddb900313b765bffa3ce724f42bd1152f1318d83161
sha512
2c6b3ab99870f982b10ffef6341c79e180288c9075c9244e616b0aadbd65a77d7ae1ea87b41c89cbe730a5f593db0d0f5d9508e104f5c2d498a1009e5bb939c3
ripemd-160
220b7b29b4b3bd0fa7e557dba0b4f28df8a59053
Diameter
2545824242
Circumference
7997942735.998
Area
5.0903391258579E+18
Volume
8.6394058310734E+27
Surface area
2.0361356503432E+19
Circumference
7997942735.998
Perimeter
5091648484
Area
1620305267788718641
Diagonal
1800169585.2273
Surface area
9.7218316067323E+18
Volume
2.0625062150884E+27
Space diagonal
2204748467.1423
Perimeter
3818736363
Area
7.0161276189539E+17
Altitude
1102374233.5711
Surface area
7.0161276189539E+17
Volume
2.4306868848807E+26
Height
600056528.4091