1988996918 is an even 10-digits composite number following 1988996917
and preceding 1988996919 . In scientific notation, it is written as 1.988996918 × 10^9.
The sum of its digits is 68. It has a total of 2 prime factors and 4 positive divisors.
There are 994498458 positive integers (up to 1988996918) that are relatively prime to 1988996918.
1988996918 has 4 divisors, whose sum is 2983495380
The reverse of 1988996918 is 8196998891
Previous prime number is 2
Is Prime? no Number parity even Number length 10 Sum of Digits 68 Digital Root 5
Name
one billion nine hundred eighty-eight million nine hundred ninety-six thousand nine hundred eighteen
Scientific notation
1.988996918 × 10^9
Engineering notation
1.988996918 × 10^9
Prime Factorization
2 × 994498459
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
1988996918 Product of the distinct prime numbers
The prime factorization of 1988996918 is 2 × 994498459.
Since it has a total of 2 prime factors.
9 , 8 , 32 , 60 , 498 , 234 , 1695 , 9348 , 72371 , 66589 , 5560 , 625074 , 64706 , 1184311 , 67095800 , 24150007 , 230629668 , 941106541 , 7068486222 , 2532992713
n×2
3977993836
n×3
5966990754
n×4
7955987672
n×5
9944984590
n÷2
994498459
n÷3
662998972.66667
n÷3
497249229.5
n÷5
397799383.6
n2
3956108739813498724
n3
7.8686880907619E+27
n4
1.5650796361229E+37
n5
3.112938572673E+46
2 √n44598.171688983
3 √n1257.6062973513
4 √n211.18279212328
5 √n72.398042190542
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
-1988996917 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 1988996918 can be divided by 4 positive divisors.
The sum of these divisors (counting 1988996918) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110100011011010111100110110
3
Ternary
12010121122111211112
4
Quaternary
1312203122330312
5
Quinary
13033140400133
6
Senary
525211035022
8
Octal
16643327466
10
Decimal
1988996918
12
Duodecimal
47613ba72
16
Hexadecimal
768daf36
20
Vigesimal
1b1b4c5i
36
Base36
ww73ue
md5
05b036991980d748eff39b8ac15999b8
sha1
d4530985e7c252731fa8f47cc16e8d577f8e4b9b
sha256
bf54e4e757806608f57dfa83a11de948b7d334ef243b75f2566a6b6b35935bb8
sha512
580b3440382577bc300440113a8a0ca545f367fd002e59eea2988577d51d8813d10c83c129788303140ea3d7196ab0bc2a4b597e8cdc0018da2deb42e162660f
ripemd-160
d9c85eecd9e4546cdfa3ad819f495ca5036d0182
Diameter
3977993836
Circumference
12497236211.203
Area
1.24284821538E+19
Volume
3.2960283599103E+28
Surface area
4.9713928615202E+19
Circumference
12497236211.203
Perimeter
7955987672
Area
3956108739813498724
Diagonal
2812866416.9539
Surface area
2.3736652438881E+19
Volume
7.8686880907619E+27
Space diagonal
3445043718.0739
Perimeter
5966990754
Area
1.7130453344061E+18
Altitude
1722521859.037
Surface area
1.7130453344061E+18
Volume
9.2733378466993E+26
Height
937622138.98463