1990644178 is an even 10-digits composite number following 1990644177
and preceding 1990644179 . In scientific notation, it is written as 1.990644178 × 10^9.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 968421456 positive integers (up to 1990644178) that are relatively prime to 1990644178.
1990644178 has 8 divisors, whose sum is 3066668172
The reverse of 1990644178 is 8714460991
Previous prime number is 37
Is Prime? no
Number parity even
Number length 10
Sum of Digits 49
Digital Root 4
Name
one billion nine hundred ninety million six hundred forty-four thousand one hundred seventy-eight
Scientific notation
1.990644178 × 10^9
Engineering notation
1.990644178 × 10^9
Prime Factorization
2 × 37 × 26900597
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1990644178
Product of the distinct prime numbers
The prime factorization of 1990644178 is 2 × 37 × 26900597.
Since it has a total of 3 prime factors.
10 , 5 , 41 , 47 , 758 , 172 , 3423 , 2125 , 66477 , 71253 , 576169 , 289665 , 7837931 , 418653 , 10694479 , 43558429 , 508581325 , 186491489 , 1238589533 , 5319092945
n×2
3981288356
n×3
5971932534
n×4
7962576712
n×5
9953220890
n÷2
995322089
n÷3
663548059.33333
n÷3
497661044.5
n÷5
398128835.6
n2
3962664243405295684
n3
7.8882545055035E+27
n4
1.5702707905963E+37
n5
3.125850407184E+46
2 √n
44616.63566429
3 √n
1257.9533789886
4 √n
211.22650322412
5 √n
72.410030033283
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990644177
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990644178 can be divided by 8 positive divisors.
The sum of these divisors (counting 1990644178) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110101001101101000111010010
3
Ternary
12010201202012110011
4
Quaternary
1312221231013102
5
Quinary
13034101103203
6
Senary
525310225134
8
Octal
16651550722
10
Decimal
1990644178
12
Duodecimal
4767b51aa
16
Hexadecimal
76a6d1d2
20
Vigesimal
1b21aa8i
36
Base36
wx6evm
md5
6ea46fc70af94fc3ece388b706b6e4a6
sha1
e4f2400471fbcc8db4f302b80d904b0850f5dfaa
sha256
671adb9bdfbcff1807cea389c99e6f4c4a16bcce148425ead291857b6c088457
sha512
eaaa512bfee7e7d138f71f85b306f11991b685b6504f4f8e2b26110a9d48b3b6e638fb5c879d0435e0b93e8db85b6002e0b817723b60f66a326afcabf60b6ad8
ripemd-160
85e4dc433d69b3554948e1c18e6f6a38da255f4d
Diameter
3981288356
Circumference
12507586251.032
Area
1.2449076875725E+19
Volume
3.3042243205515E+28
Surface area
4.97963075029E+19
Circumference
12507586251.032
Perimeter
7962576712
Area
3962664243405295684
Diagonal
2815195994.3866
Surface area
2.3775985460432E+19
Volume
7.8882545055035E+27
Space diagonal
3447896856.0872
Perimeter
5971932534
Area
1.7158839507286E+18
Altitude
1723948428.0436
Surface area
1.7158839507286E+18
Volume
9.2963970876115E+26
Height
938398664.79555