1981878259 is an odd 10-digits prime number following 1981878258
and preceding 1981878260 . In scientific notation, it is written as 1.981878259 × 10^9.
The sum of its digits is 58. It has a total of 1 prime factors and 2 positive divisors.
There are 1981878258 positive integers (up to 1981878259) that are relatively prime to 1981878259.
1981878259 has 2 divisors, whose sum is 1981878260
The reverse of 1981878259 is 9528781891
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 10
Sum of Digits 58
Digital Root 4
Name
one billion nine hundred eighty-one million eight hundred seventy-eight thousand two hundred fifty-nine
Scientific notation
1.981878259 × 10^9
Engineering notation
1.981878259 × 10^9
Prime Factorization
1981878259
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1981878259
Product of the distinct prime numbers
The prime factorization of 1981878259 is 1981878259.
Since it has a total of 1 prime factors.
1 , 5 , 42 , 39 , 521 , 399 , 7611 , 3031 , 14610 , 75365 , 345189 , 58006 , 3604271 , 6605510 , 10460704 , 24065310 , 264518166 , 304587491 , 2861965156 , 5160942859
n×2
3963756518
n×3
5945634777
n×4
7927513036
n×5
9909391295
n÷2
990939129.5
n÷3
660626086.33333
n÷3
495469564.75
n÷5
396375651.8
n2
3927841433496871081
n3
7.7845035418468E+27
n4
1.5427938326695E+37
n5
3.0576295550869E+46
2 √n
44518.291285718
3 √n
1256.1041713385
4 √n
210.99358114814
5 √n
72.346145038158
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1981878260
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
990939130
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
44518.291296949
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999989909
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981878259 can be divided by 2 positive divisors.
The sum of these divisors (counting 1981878259) is 1981878260, the average is 990939130.
Base
System
Value
2
Binary
1110110001000010000111111110011
3
Ternary
12010010020211212111
4
Quaternary
1312020100333303
5
Quinary
13024330101014
6
Senary
524354310151
8
Octal
16610207763
10
Decimal
1981878259
12
Duodecimal
473888357
16
Hexadecimal
76210ff3
20
Vigesimal
1aj6efcj
36
Base36
wryj1v
md5
0dd5024f16188f573fc4470bb788bce7
sha1
a145bc195a26e9fc511bacd0fd806010e23816c5
sha256
449ff79e681bb826d56593e38388143e8eab99253184b603dc91acb8aefeecc9
sha512
d35cf614994f24f27c0802ade10eeefd8487327d0ff414763dd1e876c095966f50f4daa38b5ec41291af10baf8b5c0f765590a3cb20039a7b2bed900ed6a36a8
ripemd-160
8dbb5b7c1cd1bbad026b2f5c4c1cf736d2d0a5d3
Diameter
3963756518
Circumference
12452508357.567
Area
1.2339677791939E+19
Volume
3.2607652185213E+28
Surface area
4.9358711167757E+19
Circumference
12452508357.567
Perimeter
7927513036
Area
3927841433496871081
Diagonal
2802799112.8502
Surface area
2.3567048600981E+19
Volume
7.7845035418468E+27
Space diagonal
3432713839.0042
Perimeter
5945634777
Area
1.7008052317227E+18
Altitude
1716356919.5021
Surface area
1.7008052317227E+18
Volume
9.174125404351E+26
Height
934266370.95006