1900451981 is an odd 10-digits composite number following 1900451980
and preceding 1900451982 . In scientific notation, it is written as 1.900451981 × 10^9.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 1709055744 positive integers (up to 1900451981) that are relatively prime to 1900451981.
1900451981 has 16 divisors, whose sum is 2101987584
The reverse of 1900451981 is 1891540091
Previous prime number is 1213
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 38
Digital Root 2
Name
one billion nine hundred million four hundred fifty-one thousand nine hundred eighty-one
Scientific notation
1.900451981 × 10^9
Engineering notation
1.900451981 × 10^9
Prime Factorization
17 × 23 × 1213 × 4007
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1900451981
Product of the distinct prime numbers
The prime factorization of 1900451981 is 17 × 23 × 1213 × 4007.
Since it has a total of 4 prime factors.
7 , 2 , 42 , 20 , 351 , 237 , 9370 , 5457 , 62576 , 33206 , 196038 , 581062 , 9261034 , 7443982 , 47915248 , 79319099 , 547321513 , 758891138 , 3019220127 , 6769368471
n×2
3800903962
n×3
5701355943
n×4
7601807924
n×5
9502259905
n÷2
950225990.5
n÷3
633483993.66667
n÷3
475112995.25
n÷5
380090396.2
n2
3611717732086824361
n3
6.8638961187572E+27
n4
1.304450497627E+37
n5
2.4790455323317E+46
2 √n
43594.173704751
3 √n
1238.6605335348
4 √n
208.79217826526
5 √n
71.741653181904
1 , 17 , 23 , 391 , 1213 , 4007 , 20621 , 27899 , 68119 , 92161 , 474283 , 1566737 , 4860491 , 82628347 , 111791293 , 1900451981
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
-1900451980
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 1900451981 can be divided by 16 positive divisors.
The sum of these divisors (counting 1900451981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110001010001101001100010001101
3
Ternary
11220110000222000102
4
Quaternary
1301101221202031
5
Quinary
12343003430411
6
Senary
512325140445
8
Octal
16121514215
10
Decimal
1900451981
12
Duodecimal
45055a725
16
Hexadecimal
7146988d
20
Vigesimal
19dhg9j1
36
Base36
vfha4t
md5
ba64b683b8a2f0ca07f6de2c51f142a3
sha1
c21efe1f56039d8615c605a46f47a031e3a0e656
sha256
68ab73045a748a812356b2368e5879786c0c0bafd169f9096922cdf0f679e130
sha512
c7d08474d13c8fc97e445a7c4e835dea12d6d369e2c7b1c010e98783ebb955dcb3a7c798b7a462f56905c4e3affecb6605eb7677086976714670aa67ec121711
ripemd-160
90ae242375ca680608ec8d52d7f4bc107ca47e55
Diameter
3800903962
Circumference
11940891964.02
Area
1.1346545893964E+19
Volume
2.8751420828922E+28
Surface area
4.5386183575856E+19
Circumference
11940891964.02
Perimeter
7601807924
Area
3611717732086824361
Diagonal
2687644966.169
Surface area
2.1670306392521E+19
Volume
6.8638961187572E+27
Space diagonal
3291679388.4369
Perimeter
5701355943
Area
1.563919653643E+18
Altitude
1645839694.2185
Surface area
1.563919653643E+18
Volume
8.0891791515554E+26
Height
895881655.38967