2018981 is an odd 7-digits prime number following 2018980
and preceding 2018982 . In scientific notation, it is written as 2.018981 × 10^6.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 2018980 positive integers (up to 2018981) that are relatively prime to 2018981.
2018981 has 2 divisors, whose sum is 2018982
The reverse of 2018981 is 1898102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 7
Sum of Digits 29
Digital Root 2
Name
two million eighteen thousand nine hundred eighty-one
Scientific notation
2.018981 × 10^6
Engineering notation
2.018981 × 10^6
Prime Factorization
2018981
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
2018981
Product of the distinct prime numbers
The prime factorization of 2018981 is 2018981.
Since it has a total of 1 prime factors.
4 , 8 , 57 , 63 , 930 , 494 , 1515 , 8776 , 6649 , 79530 , 363445 , 573463 , 9225298 , 8129860 , 84186071 , 46135063 , 197561040 , 484655080 , 5349049984 , 3362256218
n×2
4037962
n×3
6056943
n×4
8075924
n×5
10094905
n÷2
1009490.5
n÷3
672993.66666667
n÷3
504745.25
n÷5
403796.2
n2
4076284278361
n3
8229940508609570141
n4
1.6616093518013E+25
n5
3.3547577107092E+31
2 √n
1420.9085121851
3 √n
126.38942672467
4 √n
37.694940140357
5 √n
18.240067719484
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
2018982
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
1009491
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1420.9088640726
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999990094018
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2018981 can be divided by 2 positive divisors.
The sum of these divisors (counting 2018981) is 2018982, the average is 1009491.
Base
System
Value
2
Binary
111101100111010100101
3
Ternary
10210120112002
4
Quaternary
13230322211
5
Quinary
1004101411
6
Senary
111135045
8
Octal
7547245
10
Decimal
2018981
12
Duodecimal
814485
16
Hexadecimal
1ecea5
20
Vigesimal
cc791
36
Base36
179ut
md5
66c9e57dd85ac928c7c172f2e4bba095
sha1
64fb1e644c1f2d82234e91c6a0894313a8548ca1
sha256
9a02821bda053c7d5ce6147ea56b1171d4d4066eb64b27797aa88bd15b131a97
sha512
e45cdb2ed7825fe26b9f189b3d18e97a179418afef3c96f45cc609bff90b165d58478524699b2af0fbcb6f92bda089f4f02f856f0364be5c8dd2d303747ad876
ripemd-160
f17ea5dd946533d2dfb15d7f975eab87ba827441
Diameter
4037962
Circumference
12685631.754675
Area
12806024742842
Volume
3.4473494188438E+19
Surface area
51224098971370
Circumference
12685631.754675
Perimeter
8075924
Area
4076284278361
Diagonal
2855270.3123736
Surface area
24457705670166
Volume
8229940508609570141
Space diagonal
3496977.6715162
Perimeter
6056943
Area
1765082869053.9
Altitude
1748488.8357581
Surface area
1765082869053.9
Volume
9.6990779039995E+17
Height
951756.7707912