19981397 is an odd 8-digits prime number following 19981396
and preceding 19981398 . In scientific notation, it is written as 1.9981397 × 10^7.
The sum of its digits is 47. It has a total of 1 prime factors and 2 positive divisors.
There are 19981396 positive integers (up to 19981397) that are relatively prime to 19981397.
19981397 has 2 divisors, whose sum is 19981398
The reverse of 19981397 is 79318991
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 47 Digital Root 2
Name
nineteen million nine hundred eighty-one thousand three hundred ninety-seven
Scientific notation
1.9981397 × 10^7
Engineering notation
1.9981397 × 10^6
Prime Factorization
19981397
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
19981397 Product of the distinct prime numbers
The prime factorization of 19981397 is 19981397.
Since it has a total of 1 prime factors.
1 , 10 , 61 , 46 , 248 , 120 , 3258 , 5106 , 10177 , 98402 , 830933 , 975196 , 7162773 , 575092 , 85120960 , 50415151 , 741531162 , 880049515 , 4251833028 , 6025794068
n×2
39962794
n×3
59944191
n×4
79925588
n×5
99906985
n÷2
9990698.5
n÷3
6660465.6666667
n÷3
4995349.25
n÷5
3996279.4
n2
399256226071609
n3
7.9776971578586E+21
n4
1.5940553405694E+29
n5
3.1851452599888E+36
2 √n4470.0555924955
3 √n271.35757503383
4 √n66.858474350642
5 √n28.848628410649
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
19981398 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
9990699 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4470.0557043509 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999998999069 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19981397 can be divided by 2 positive divisors.
The sum of these divisors (counting 19981397) is 19981398, the average is 9990699.
Base
System
Value
2
Binary
1001100001110010001010101
3
Ternary
1101121011022202
4
Quaternary
1030032101111
5
Quinary
20103401042
6
Senary
1552134245
8
Octal
114162125
10
Decimal
19981397
12
Duodecimal
6837385
16
Hexadecimal
130e455
20
Vigesimal
64hd9h
36
Base36
bw9qt
md5
f2d5c8133b8837d7fd53a28241036140
sha1
5d09e91a2a3fbe6125f0b88c845033fc8629e710
sha256
e9ac42bea4216a4ad2f1c956f0a9417400a21d3e440f4b2c0173086ae932e700
sha512
a77fbc278a48ba699806a232e3193fd317d931c6909751eb24a12456f401274d96644825de09fb5512958b50d8df9f7bd9a053fb3c9ed16357e19c84eb29083d
ripemd-160
e285f2371bc79ccc6e6112676da440b734ca5c73
Diameter
39962794
Circumference
125546820.04732
Area
1.2543004267266E+15
Volume
3.341689971159E+22
Surface area
5.0172017069062E+15
Circumference
125546820.04732
Perimeter
79925588
Area
399256226071609
Diagonal
28257962.632561
Surface area
2395537356429654
Volume
7.9776971578586E+21
Space diagonal
34608794.810204
Perimeter
59944191
Area
1.7288301719856E+14
Altitude
17304397.405102
Surface area
1.7288301719856E+14
Volume
9.4018062642907E+20
Height
9419320.8775204