1981874189 is an odd 10-digits composite number following 1981874188
and preceding 1981874190 . In scientific notation, it is written as 1.981874189 × 10^9.
The sum of its digits is 56. It has a total of 3 prime factors and 8 positive divisors.
There are 1895268496 positive integers (up to 1981874189) that are relatively prime to 1981874189.
1981874189 has 8 divisors, whose sum is 2068519680
The reverse of 1981874189 is 9814781891
Previous prime number is 13487
Is Prime? no Number parity odd Number length 10 Sum of Digits 56 Digital Root 2
Name
one billion nine hundred eighty-one million eight hundred seventy-four thousand one hundred eighty-nine
Scientific notation
1.981874189 × 10^9
Engineering notation
1.981874189 × 10^9
Prime Factorization
23 × 13487 × 6389
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1981874189 Product of the distinct prime numbers
The prime factorization of 1981874189 is 23 × 13487 × 6389.
Since it has a total of 3 prime factors.
1 , 1 , 6 , 14 , 699 , 914 , 7183 , 9346 , 36895 , 42962 , 775155 , 672070 , 8052917 , 3644781 , 90415328 , 42055245 , 284002856 , 274894694 , 9331510470 , 9942243994
n×2
3963748378
n×3
5945622567
n×4
7927496756
n×5
9909370945
n÷2
990937094.5
n÷3
660624729.66667
n÷3
495468547.25
n÷5
396374837.8
n2
3927825301024407721
n3
7.7844555830014E+27
n4
1.5427811595367E+37
n5
3.0575981593614E+46
2 √n44518.245574146
3 √n1256.1033114896
4 √n210.99347282356
5 √n72.346115324016
8 divisors
τ Total Divisors
8 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1981874188 Sum of the proper positive divisors of n
A Arithmetic Mean
0.125 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
8 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981874189 can be divided by 8 positive divisors.
The sum of these divisors (counting 1981874189) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110001000010000000000001101
3
Ternary
12010010020122021202
4
Quaternary
1312020100000031
5
Quinary
13024324433224
6
Senary
524354235245
8
Octal
16610200015
10
Decimal
1981874189
12
Duodecimal
473885b25
16
Hexadecimal
7621000d
20
Vigesimal
1aj6e599
36
Base36
wryfwt
md5
aa29a8704d0d00676855d64cc7917267
sha1
976b15e6a21f6c0a0520318515902be4e445b953
sha256
3a4742dbac5a5a3ba9f2c4d2e23ffbc9c31e79b0eff300d6adc42b64e3debe50
sha512
f23e056b63ad7167819e88b1d42e47320331b5768a45df58f6cdb2bc5a158c2773b179719bc4e5e02a2b789714a0899ff7d16d2bd2661fa51f9f505a02d101c1
ripemd-160
173e96fba4fa5ae459335248022837951fcf786b
Diameter
3963748378
Circumference
12452482785.003
Area
1.2339627110282E+19
Volume
3.2607451295671E+28
Surface area
4.935850844113E+19
Circumference
12452482785.003
Perimeter
7927496756
Area
3927825301024407721
Diagonal
2802793357.001
Surface area
2.3566951806146E+19
Volume
7.7844555830014E+27
Space diagonal
3432706789.5574
Perimeter
5945622567
Area
1.7007982461572E+18
Altitude
1716353394.7787
Surface area
1.7007982461572E+18
Volume
9.1740688843097E+26
Height
934264452.33366