2021081778 is an even 10-digits composite number following 2021081777
and preceding 2021081779 . In scientific notation, it is written as 2.021081778 × 10^9.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 672648792 positive integers (up to 2021081778) that are relatively prime to 2021081778.
2021081778 has 16 divisors, whose sum is 3373695360
The reverse of 2021081778 is 8771801202
Previous prime number is 647
Is Prime? no
Number parity even
Number length 10
Sum of Digits 36
Digital Root 9
Name
two billion twenty-one million eighty-one thousand seven hundred seventy-eight
Scientific notation
2.021081778 × 10^9
Engineering notation
2.021081778 × 10^9
Prime Factorization
2 × 9 × 647 × 173543
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2021081778
Product of the distinct prime numbers
The prime factorization of 2021081778 is 2 × 9 × 647 × 173543.
Since it has a total of 4 prime factors.
4 , 1 , 13 , 83 , 2 , 691 , 9254 , 8421 , 39640 , 59481 , 60233 , 843066 , 6325571 , 8010998 , 85704405 , 53988317 , 451825021 , 956977407 , 5675865356 , 5546840725
n×2
4042163556
n×3
6063245334
n×4
8084327112
n×5
10105408890
n÷2
1010540889
n÷3
673693926
n÷3
505270444.5
n÷5
404216355.6
n2
4084771553363641284
n3
8.255657353796E+27
n4
1.6685358643169E+37
n5
3.3722474313103E+46
2 √n
44956.44311998
3 √n
1264.332481853
4 √n
212.02934495013
5 √n
72.630122608049
1 , 2 , 9 , 18 , 647 , 1294 , 5823 , 11646 , 173543 , 347086 , 1561887 , 3123774 , 112282321 , 224564642 , 1010540889 , 2021081778
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2021081777
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2021081778 can be divided by 16 positive divisors.
The sum of these divisors (counting 2021081778) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1111000011101110100001010110010
3
Ternary
12012212000120222200
4
Quaternary
1320131310022302
5
Quinary
13114344104103
6
Senary
532314444030
8
Octal
17035641262
10
Decimal
2021081778
12
Duodecimal
484a33616
16
Hexadecimal
787742b2
20
Vigesimal
1bbbf48i
36
Base36
xfasoi
md5
6b86ffd3fd4fe224b0dd65b16999365a
sha1
12a2f946f52cb0afae7eeacb7a389d7f7c71103d
sha256
a43f9ab2f9f933f3c93f434fc201383b436d0a3f3a4a08ee6402afea250f745b
sha512
93ab3b93594d6c05f71b0bc7c57d2a0ffd2d47fc94097058f2db2f3ac3d4f16dd58c70cde118c7d40d737686e0cedfa7c5c4c79ccd1f356a8d045a89b44932c3
ripemd-160
5a2bf9488369188349a041041777cc620f0f3def
Diameter
4042163556
Circumference
12698831332.138
Area
1.283268830364E+19
Volume
3.4581216657653E+28
Surface area
5.1330753214559E+19
Circumference
12698831332.138
Perimeter
8084327112
Area
4084771553363641284
Diagonal
2858241261.1127
Surface area
2.4508629320182E+19
Volume
8.255657353796E+27
Space diagonal
3500616325.7476
Perimeter
6063245334
Area
1.7687579669345E+18
Altitude
1750308162.8738
Surface area
1.7687579669345E+18
Volume
9.7293854967029E+26
Height
952747087.03758