1997568638 is an even 10-digits composite number following 1997568637
and preceding 1997568639 . In scientific notation, it is written as 1.997568638 × 10^9.
The sum of its digits is 62. It has a total of 4 prime factors and 16 positive divisors.
There are 892213920 positive integers (up to 1997568638) that are relatively prime to 1997568638.
1997568638 has 16 divisors, whose sum is 3330934656
The reverse of 1997568638 is 8368657991
Previous prime number is 31
Is Prime? no Number parity even Number length 10 Sum of Digits 62 Digital Root 8
Name
one billion nine hundred ninety-seven million five hundred sixty-eight thousand six hundred thirty-eight
Scientific notation
1.997568638 × 10^9
Engineering notation
1.997568638 × 10^9
Prime Factorization
2 × 13 × 31 × 2478373
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1997568638 Product of the distinct prime numbers
The prime factorization of 1997568638 is 2 × 13 × 31 × 2478373.
Since it has a total of 4 prime factors.
6 , 8 , 89 , 15 , 957 , 116 , 1937 , 7974 , 99099 , 93944 , 890553 , 277454 , 8354241 , 2613718 , 84569372 , 95068954 , 690572126 , 672837843 , 313608671 , 8559896412
n×2
3995137276
n×3
5992705914
n×4
7990274552
n×5
9987843190
n÷2
998784319
n÷3
665856212.66667
n÷3
499392159.5
n÷5
399513727.6
n2
3990280463521175044
n3
7.970859110754E+27
n4
1.5922338177559E+37
n5
3.1805963387121E+46
2 √n44694.167829819
3 √n1259.4102888375
4 √n211.40995205954
5 √n72.460335775087
1 , 2 , 13 , 26 , 31 , 62 , 403 , 806 , 2478373 , 4956746 , 32218849 , 64437698 , 76829563 , 153659126 , 998784319 , 1997568638
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
-1997568637 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 1997568638 can be divided by 16 positive divisors.
The sum of these divisors (counting 1997568638) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111000100000111101001111110
3
Ternary
12011012210000000122
4
Quaternary
1313010013221332
5
Quinary
13042334144023
6
Senary
530114454542
8
Octal
16704075176
10
Decimal
1997568638
12
Duodecimal
478b94452
16
Hexadecimal
77107a7e
20
Vigesimal
1b44g1bi
36
Base36
x1attq
md5
a55e4ba865d1a9938d6b6fd18ebe79fd
sha1
868016d31f58715f6287cb16968769901583a54c
sha256
762edafd040d3f1ae31b7b2d3ff34aaa27ceb5db5a4d36cb484eddf63ed58a9f
sha512
193a3fa9332c8b7896a40aaa410c0d80ef90cfa3e92c831fc3ee70b5ec2fb931dafb24ec952eeeeb9bccab5c50c91466233666444b5f0c72fbb515e04679dab4
ripemd-160
81dc38b5223c4a920666b53d6b452ed214807f81
Diameter
3995137276
Circumference
12551093916.364
Area
1.2535835789961E+19
Volume
3.3388256566859E+28
Surface area
5.0143343159844E+19
Circumference
12551093916.364
Perimeter
7990274552
Area
3990280463521175044
Diagonal
2824988659.6308
Surface area
2.3941682781127E+19
Volume
7.970859110754E+27
Space diagonal
3459890372.6222
Perimeter
5992705914
Area
1.727842124817E+18
Altitude
1729945186.3111
Surface area
1.727842124817E+18
Volume
9.3937475484945E+26
Height
941662886.54358