1981109101 is an odd 10-digits composite number following 1981109100
and preceding 1981109102 . In scientific notation, it is written as 1.981109101 × 10^9.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 1943729632 positive integers (up to 1981109101) that are relatively prime to 1981109101.
1981109101 has 4 divisors, whose sum is 2018488572
The reverse of 1981109101 is 1019011891
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 31
Digital Root 4
Name
one billion nine hundred eighty-one million one hundred nine thousand one hundred one
Scientific notation
1.981109101 × 10^9
Engineering notation
1.981109101 × 10^9
Prime Factorization
53 × 37379417
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1981109101
Product of the distinct prime numbers
The prime factorization of 1981109101 is 53 × 37379417.
Since it has a total of 2 prime factors.
6 , 9 , 74 , 97 , 540 , 25 , 282 , 7252 , 27318 , 56267 , 771922 , 578747 , 2822412 , 1087929 , 44968274 , 73926168 , 949889063 , 826653977 , 1100141795 , 134055012
n×2
3962218202
n×3
5943327303
n×4
7924436404
n×5
9905545505
n÷2
990554550.5
n÷3
660369700.33333
n÷3
495277275.25
n÷5
396221820.2
n2
3924793270065028201
n3
7.7754436668694E+27
n4
1.5404002212748E+37
n5
3.0517008975499E+46
2 √n
44509.65177352
3 √n
1255.9416541943
4 √n
210.9731067542
5 √n
72.340528723804
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
-1981109100
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 1981109101 can be divided by 4 positive divisors.
The sum of these divisors (counting 1981109101) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110000101010101001101101101
3
Ternary
12010001210202210011
4
Quaternary
1312011111031231
5
Quinary
13024130442401
6
Senary
524330013221
8
Octal
16605251555
10
Decimal
1981109101
12
Duodecimal
473577211
16
Hexadecimal
7615536d
20
Vigesimal
1aj1icf1
36
Base36
wri1kd
md5
0a64f3733228887b3b6e085603b68812
sha1
1d0c91cbe63852f46f51b3f998f9f8210a162c8c
sha256
40d5e7616f3eb9fda8b817ab5d3499525cdddc07eb1660801647f9e934b2e05c
sha512
d9dc40880cefb224e6678c6c3b7d01a137e5c296590739cf2e77b4ec9b6efb64770e1692b31340d96c1a4a4d20a1790c24f82e80616b93acb9266e176642c805
ripemd-160
83afaaf5e58cfbf96a9ffabca028d90d9d88b132
Diameter
3962218202
Circumference
12447675595.323
Area
1.2330101704095E+19
Volume
3.2569702269651E+28
Surface area
4.932040681638E+19
Circumference
12447675595.323
Perimeter
7924436404
Area
3924793270065028201
Diagonal
2801711359.175
Surface area
2.354875962039E+19
Volume
7.7754436668694E+27
Space diagonal
3431381618.2691
Perimeter
5943327303
Area
1.6994853382393E+18
Altitude
1715690809.1346
Surface area
1.6994853382393E+18
Volume
9.1634482392956E+26
Height
933903786.39166