1997788678 is an even 10-digits composite number following 1997788677
and preceding 1997788679 . In scientific notation, it is written as 1.997788678 × 10^9.
The sum of its digits is 70. It has a total of 4 prime factors and 16 positive divisors.
There are 977897440 positive integers (up to 1997788678) that are relatively prime to 1997788678.
1997788678 has 16 divisors, whose sum is 3059922096
The reverse of 1997788678 is 8768877991
Previous prime number is 461
Is Prime? no Number parity even Number length 10 Sum of Digits 70 Digital Root 7
Name
one billion nine hundred ninety-seven million seven hundred eighty-eight thousand six hundred seventy-eight
Scientific notation
1.997788678 × 10^9
Engineering notation
1.997788678 × 10^9
Prime Factorization
2 × 53 × 461 × 40883
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1997788678 Product of the distinct prime numbers
The prime factorization of 1997788678 is 2 × 53 × 461 × 40883.
Since it has a total of 4 prime factors.
7 , 7 , 43 , 60 , 807 , 386 , 5543 , 2403 , 13011 , 12000 , 839031 , 428742 , 62826 , 2673035 , 97386339 , 98794540 , 993592586 , 23862549 , 4967175995 , 1099277331
n×2
3995577356
n×3
5993366034
n×4
7991154712
n×5
9988943390
n÷2
998894339
n÷3
665929559.33333
n÷3
499447169.5
n÷5
399557735.6
n2
3991159601944987684
n3
7.9734934648567E+27
n4
1.5929354968198E+37
n5
3.1823485003308E+46
2 √n44696.629380749
3 √n1259.4565301297
4 √n211.41577372738
5 √n72.461932062644
1 , 2 , 53 , 106 , 461 , 922 , 24433 , 40883 , 48866 , 81766 , 2166799 , 4333598 , 18847063 , 37694126 , 998894339 , 1997788678
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
-1997788677 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 1997788678 can be divided by 16 positive divisors.
The sum of these divisors (counting 1997788678) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110111000100111101011000000110
3
Ternary
12011020012011212021
4
Quaternary
1313010331120012
5
Quinary
13042413214203
6
Senary
530123313354
8
Octal
16704753006
10
Decimal
1997788678
12
Duodecimal
47907b85a
16
Hexadecimal
7713d606
20
Vigesimal
1b463bdi
36
Base36
x1fjly
md5
d5962f7af3fb6e53964d0fae8054d0c8
sha1
c6f8f5c675006fa260db8a1f20fb0769ce324af5
sha256
d1bfaa4af8bfb062a496a0563cda2e50cfaea205cd8b9786e5124d3bbdd84510
sha512
648004c9ae053adf6cf26edfd17290a5513b0bf38ea0bc52933c2dbeb60ea199d180336d0474b0c3f47179070e92a679ae2d20fe1a12a67e485ef07c9f874f68
ripemd-160
bf87e3aab048a4a25b3b5816cd31809772832901
Diameter
3995577356
Circumference
12552476468.459
Area
1.2538597684775E+19
Volume
3.339929132352E+28
Surface area
5.0154390739099E+19
Circumference
12552476468.459
Perimeter
7991154712
Area
3991159601944987684
Diagonal
2825299843.183
Surface area
2.394695761167E+19
Volume
7.9734934648567E+27
Space diagonal
3460271493.0819
Perimeter
5993366034
Area
1.7282228029213E+18
Altitude
1730135746.5409
Surface area
1.7282228029213E+18
Volume
9.396852164578E+26
Height
941766614.39434