1998746557 is an odd 10-digits composite number following 1998746556
and preceding 1998746558 . In scientific notation, it is written as 1.998746557 × 10^9.
The sum of its digits is 61. It has a total of 2 prime factors and 4 positive divisors.
There are 1965980160 positive integers (up to 1998746557) that are relatively prime to 1998746557.
1998746557 has 4 divisors, whose sum is 2031512956
The reverse of 1998746557 is 7556478991
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 61
Digital Root 7
Name
one billion nine hundred ninety-eight million seven hundred forty-six thousand five hundred fifty-seven
Scientific notation
1.998746557 × 10^9
Engineering notation
1.998746557 × 10^9
Prime Factorization
61 × 32766337
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1998746557
Product of the distinct prime numbers
The prime factorization of 1998746557 is 61 × 32766337.
Since it has a total of 2 prime factors.
7 , 4 , 73 , 18 , 490 , 415 , 2146 , 8799 , 26467 , 63236 , 517449 , 501891 , 7301965 , 4912615 , 81284715 , 40536913 , 337009635 , 296736123 , 2550281520 , 6020747560
n×2
3997493114
n×3
5996239671
n×4
7994986228
n×5
9993732785
n÷2
999373278.5
n÷3
666248852.33333
n÷3
499686639.25
n÷5
399749311.4
n2
3994987799119354249
n3
7.9849681087468E+27
n4
1.5959927515113E+37
n5
3.1899850170801E+46
2 √n
44707.343434832
3 √n
1259.6577883532
4 √n
211.44111103291
5 √n
72.468879389522
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
-1998746556
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 1998746557 can be divided by 4 positive divisors.
The sum of these divisors (counting 1998746557) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111001000100111001110111101
3
Ternary
12011021222211211021
4
Quaternary
1313020213032331
5
Quinary
13043134342212
6
Senary
530200024141
8
Octal
16710471675
10
Decimal
1998746557
12
Duodecimal
479462051
16
Hexadecimal
772273bd
20
Vigesimal
1b4c367h
36
Base36
x202pp
md5
b4fa4d40ec6caca2324e16c8e720d5a1
sha1
1ae75dfab8fc6417c463874d781813fad45f7b19
sha256
0f00e6cb6620e47e74dcec751d7c76652d176eaba0457c83907973db5b71841f
sha512
9a683feb5a861821b6c2a5949d0b501583f06e041a02933459e55ff12b1a3d6cea4ae12c85cc813068e6594c9c6b042b33cc3f99ca32fa2e03fb5112bd34668c
ripemd-160
1959aa1bd13083b740de54bfb3f0313a0ecc85a4
Diameter
3997493114
Circumference
12558494999.718
Area
1.2550624320894E+19
Volume
3.344735619945E+28
Surface area
5.0202497283577E+19
Circumference
12558494999.718
Perimeter
7994986228
Area
3994987799119354249
Diagonal
2826654488.6559
Surface area
2.3969926794716E+19
Volume
7.9849681087468E+27
Space diagonal
3461930588.1774
Perimeter
5996239671
Area
1.7298804609231E+18
Altitude
1730965294.0887
Surface area
1.7298804609231E+18
Volume
9.4103751620887E+26
Height
942218162.88531