1998385691 is an odd 10-digits prime number following 1998385690
and preceding 1998385692 . In scientific notation, it is written as 1.998385691 × 10^9.
The sum of its digits is 59. It has a total of 1 prime factors and 2 positive divisors.
There are 1998385690 positive integers (up to 1998385691) that are relatively prime to 1998385691.
1998385691 has 2 divisors, whose sum is 1998385692
The reverse of 1998385691 is 1965838991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 10
Sum of Digits 59
Digital Root 5
Name
one billion nine hundred ninety-eight million three hundred eighty-five thousand six hundred ninety-one
Scientific notation
1.998385691 × 10^9
Engineering notation
1.998385691 × 10^9
Prime Factorization
1998385691
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1998385691
Product of the distinct prime numbers
The prime factorization of 1998385691 is 1998385691.
Since it has a total of 1 prime factors.
10 , 3 , 17 , 76 , 307 , 695 , 3262 , 3843 , 8137 , 36660 , 336028 , 489841 , 6755982 , 5604984 , 51191279 , 97313539 , 63214191 , 766528750 , 3415783406 , 8240266734
n×2
3996771382
n×3
5995157073
n×4
7993542764
n×5
9991928455
n÷2
999192845.5
n÷3
666128563.66667
n÷3
499596422.75
n÷5
399677138.2
n2
3993545369993547481
n3
7.9806439237544E+27
n4
1.5948404622197E+37
n5
3.1871063591277E+46
2 √n
44703.307383235
3 √n
1259.5819750015
4 √n
211.43156666694
5 √n
72.466262405056
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1998385692
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
999192846
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
44703.30739442
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999989992
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1998385691 can be divided by 2 positive divisors.
The sum of these divisors (counting 1998385691) is 1998385692, the average is 999192846.
Base
System
Value
2
Binary
1110111000111001111001000011011
3
Ternary
12011021022111210212
4
Quaternary
1313013033020123
5
Quinary
13043041320231
6
Senary
530144201335
8
Octal
16707171033
10
Decimal
1998385691
12
Duodecimal
47930924b
16
Hexadecimal
771cf21b
20
Vigesimal
1b49i44b
36
Base36
x1sc9n
md5
a99922420f37fb70e6aa1bf405b582fb
sha1
f9b2de176ef10f335bc84a4053d3196144ce4b5b
sha256
acffceeda6ef99d8020d96064bc618eb4f4f20d156be4ce0a2cbdc1f1816f375
sha512
d49c26e0926336a70fd095de66df52697fcece020b72b6b98db919484735a2e432b0a2703ecc2580e3a92c52cc510cfa42a61c5274e44a06798a562c21e3e4b0
ripemd-160
357b9fda52dd323916830c6862dbb5f9a82a7e97
Diameter
3996771382
Circumference
12556227611.769
Area
1.2546092796149E+19
Volume
3.342924309571E+28
Surface area
5.0184371184597E+19
Circumference
12556227611.769
Perimeter
7993542764
Area
3993545369993547481
Diagonal
2826144147.0645
Surface area
2.3961272219961E+19
Volume
7.9806439237544E+27
Space diagonal
3461305549.9306
Perimeter
5995157073
Area
1.7292558707901E+18
Altitude
1730652774.9653
Surface area
1.7292558707901E+18
Volume
9.4052790612033E+26
Height
942048049.02151