1279897421 is an odd 10-digits composite number following 1279897420
and preceding 1279897422 . In scientific notation, it is written as 1.279897421 × 10^9.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 1163543100 positive integers (up to 1279897421) that are relatively prime to 1279897421.
1279897421 has 4 divisors, whose sum is 1396251744
The reverse of 1279897421 is 1247989721
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 50
Digital Root 5
Name
one billion two hundred seventy-nine million eight hundred ninety-seven thousand four hundred twenty-one
Scientific notation
1.279897421 × 10^9
Engineering notation
1.279897421 × 10^9
Prime Factorization
11 × 116354311
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1279897421
Product of the distinct prime numbers
The prime factorization of 1279897421 is 11 × 116354311.
Since it has a total of 2 prime factors.
7 , 6 , 82 , 80 , 763 , 129 , 5785 , 9666 , 81657 , 59832 , 246940 , 101448 , 8859718 , 1283513 , 24653453 , 71194468 , 724462850 , 61585110 , 7514678617 , 91592075
n×2
2559794842
n×3
3839692263
n×4
5119589684
n×5
6399487105
n÷2
639948710.5
n÷3
426632473.66667
n÷3
319974355.25
n÷5
255979484.2
n2
1638137408282451241
n3
2.0966478441043E+27
n4
2.6834941684143E+36
n5
3.4345972654221E+45
2 √n
35775.654026167
3 √n
1085.7380414626
4 √n
189.14453210751
5 √n
66.288017833431
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
-1279897420
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 1279897421 can be divided by 4 positive divisors.
The sum of these divisors (counting 1279897421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010010011010111101001101
3
Ternary
10022012100112012012
4
Quaternary
1030102122331031
5
Quinary
10110123204141
6
Senary
331000351005
8
Octal
11422327515
10
Decimal
1279897421
12
Duodecimal
2b8775465
16
Hexadecimal
4c49af4d
20
Vigesimal
jjj73b1
36
Base36
l60n65
md5
569ebc8e6418f5725be1ddbc72b62574
sha1
f958509fdaa95495f848abaf82d39a5f970287b9
sha256
c802b6e472e60e956e997c60a7c9ae74b35dfd7b5d01a173f3fad011897c8cab
sha512
63ba613e53068631fd82056be6f9a3a570a8e7d74c92cb9fa9369e48619672e61f1e2e63c396686316a7d2aa50a57df445d18d0564d8d71a96c8a53637ad3bac
ripemd-160
31bb348fa192825a647dcdb2633c959d116b7da8
Diameter
2559794842
Circumference
8041832670.3242
Area
5.1463604474308E+18
Volume
8.7824179522707E+27
Surface area
2.0585441789723E+19
Circumference
8041832670.3242
Perimeter
5119589684
Area
1638137408282451241
Diagonal
1810048291.2245
Surface area
9.8288244496947E+18
Volume
2.0966478441043E+27
Space diagonal
2216847361.6484
Perimeter
3839692263
Area
7.093343052311E+17
Altitude
1108423680.8242
Surface area
7.093343052311E+17
Volume
2.4709231805439E+26
Height
603349430.40818