1918921489 is an odd 10-digits prime number following 1918921488
and preceding 1918921490 . In scientific notation, it is written as 1.918921489 × 10^9.
The sum of its digits is 52. It has a total of 1 prime factors and 2 positive divisors.
There are 1918921488 positive integers (up to 1918921489) that are relatively prime to 1918921489.
1918921489 has 2 divisors, whose sum is 1918921490
The reverse of 1918921489 is 9841298191
Previous prime number is 1
Is Prime? yes Number parity odd Number length 10 Sum of Digits 52 Digital Root 7
Name
one billion nine hundred eighteen million nine hundred twenty-one thousand four hundred eighty-nine
Scientific notation
1.918921489 × 10^9
Engineering notation
1.918921489 × 10^9
Prime Factorization
1918921489
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
1918921489 Product of the distinct prime numbers
The prime factorization of 1918921489 is 1918921489.
Since it has a total of 1 prime factors.
8 , 4 , 24 , 26 , 852 , 729 , 87 , 9613 , 27834 , 19570 , 511167 , 266571 , 4467982 , 2167543 , 14037112 , 3546909 , 809865003 , 232130234 , 4713357698 , 3516359734
n×2
3837842978
n×3
5756764467
n×4
7675685956
n×5
9594607445
n÷2
959460744.5
n÷3
639640496.33333
n÷3
479730372.25
n÷5
383784297.8
n2
3682259680945977121
n3
7.0659672298455E+27
n4
1.355903635792E+37
n5
2.6018726237346E+46
2 √n43805.496104941
3 √n1242.6602376514
4 √n209.29762565529
5 √n71.880558238117
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
1918921490 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
959460745 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
43805.496116355 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999989577 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1918921489 can be divided by 2 positive divisors.
The sum of these divisors (counting 1918921489) is 1918921490, the average is 959460745.
Base
System
Value
2
Binary
1110010011000000110101100010001
3
Ternary
11221201210022102021
4
Quaternary
1302120012230101
5
Quinary
12412220441424
6
Senary
514225051441
8
Octal
16230065421
10
Decimal
1918921489
12
Duodecimal
456786b81
16
Hexadecimal
72606b11
20
Vigesimal
19jd53e9
36
Base36
vqh5ap
md5
3aea2bbda12e8a65e556259b04c74d7f
sha1
57f3b70db5c0e66f091cd26482a729ceaf16681c
sha256
c2716050846e59c26d20b1c81da64f0d1c3243dc983b829a551d6524f9078673
sha512
ed415743e50427d3e2fec2be7d63c2f8826a4f23a67b8f7731d027986675a8ff5fe0c3dde141f06d11de6e08818feaad5fdb753e5e3a43277b1b0e7e60d22ceb
ripemd-160
ebefff6735d986e15515ff739b81ab39e8bf9c8a
Diameter
3837842978
Circumference
12056939305.316
Area
1.156815996227E+19
Volume
2.9597854319719E+28
Surface area
4.6272639849079E+19
Circumference
12056939305.316
Perimeter
7675685956
Area
3682259680945977121
Diagonal
2713764794.873
Surface area
2.2093558085676E+19
Volume
7.0659672298455E+27
Space diagonal
3323669514.6837
Perimeter
5756764467
Area
1.5944652135152E+18
Altitude
1661834757.3419
Surface area
1.5944652135152E+18
Volume
8.3273222397762E+26
Height
904588264.95766