1981106455 is an odd 10-digits composite number following 1981106454
and preceding 1981106456 . In scientific notation, it is written as 1.981106455 × 10^9.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 1558903200 positive integers (up to 1981106455) that are relatively prime to 1981106455.
1981106455 has 4 divisors, whose sum is 1987602192
The reverse of 1981106455 is 5546011891
Previous prime number is 305
Is Prime? no Number parity odd Number length 10 Sum of Digits 40 Digital Root 4
Name
one billion nine hundred eighty-one million one hundred six thousand four hundred fifty-five
Scientific notation
1.981106455 × 10^9
Engineering notation
1.981106455 × 10^9
Prime Factorization
305 × 6495431
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
1981106455 Product of the distinct prime numbers
The prime factorization of 1981106455 is 305 × 6495431.
Since it has a total of 2 prime factors.
7 , 2 , 57 , 4 , 237 , 374 , 5352 , 281 , 47375 , 17630 , 559601 , 656979 , 6275226 , 9853654 , 97026540 , 24365036 , 796301453 , 629927632 , 2982394384 , 4523790460
n×2
3962212910
n×3
5943319365
n×4
7924425820
n×5
9905532275
n÷2
990553227.5
n÷3
660368818.33333
n÷3
495276613.75
n÷5
396221291
n2
3924782786042667025
n3
7.775412511902E+27
n4
1.5403919917617E+37
n5
3.0516805181094E+46
2 √n44509.62204962
3 √n1255.9410950423
4 √n210.97303630943
5 √n72.340509399968
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
-1981106454 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 1981106455 can be divided by 4 positive divisors.
The sum of these divisors (counting 1981106455) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110000101010100100100010111
3
Ternary
12010001210122011011
4
Quaternary
1312011110210113
5
Quinary
13024130401310
6
Senary
524325553051
8
Octal
16605244427
10
Decimal
1981106455
12
Duodecimal
473575787
16
Hexadecimal
76154917
20
Vigesimal
1aj1i62f
36
Base36
wrhziv
md5
dca77bf2d653d6a840736e7ffd712219
sha1
147a96f3881264a832a53fb355890cf166ab900c
sha256
f3de44604d80504c116e2deaaba20ac319e2ca424c7e6b7d5013444c6f595c32
sha512
c42493f8e0ddb18e7ef4c1fe641625195ede2eec89504cb5d32eb40afa66ce33306e4ac6327fc00d6d8f20d81cbd9e845bcf20a281005b0b64c8d58555dc862d
ripemd-160
27b246a61802ff4e1012c53836e3f24fbb5620e0
Diameter
3962212910
Circumference
12447658970.015
Area
1.2330068767567E+19
Volume
3.2569571768029E+28
Surface area
4.9320275070269E+19
Circumference
12447658970.015
Perimeter
7924425820
Area
3924782786042667025
Diagonal
2801707617.1659
Surface area
2.3548696716256E+19
Volume
7.775412511902E+27
Space diagonal
3431377035.2627
Perimeter
5943319365
Area
1.6994807985244E+18
Altitude
1715688517.6313
Surface area
1.6994807985244E+18
Volume
9.1634115228144E+26
Height
933902539.05529