668742457 is an odd 9-digits composite number following 668742456
and preceding 668742458 . In scientific notation, it is written as 6.68742457 × 10^8.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 639666676 positive integers (up to 668742457) that are relatively prime to 668742457.
668742457 has 4 divisors, whose sum is 697818240
The reverse of 668742457 is 754247866
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 49
Digital Root 4
Name
six hundred sixty-eight million seven hundred forty-two thousand four hundred fifty-seven
Scientific notation
6.68742457 × 10^8
Engineering notation
6.68742457 × 10^6
Prime Factorization
23 × 29075759
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
668742457
Product of the distinct prime numbers
The prime factorization of 668742457 is 23 × 29075759.
Since it has a total of 2 prime factors.
8 , 6 , 29 , 81 , 715 , 649 , 442 , 2653 , 6797 , 27872 , 250090 , 686675 , 9197999 , 6865940 , 60358427 , 88631072 , 687379837 , 875123341 , 3547804069 , 1826206677
n×2
1337484914
n×3
2006227371
n×4
2674969828
n×5
3343712285
n÷2
334371228.5
n÷3
222914152.33333
n÷3
167185614.25
n÷5
133748491.4
n2
447216473794396849
n3
2.9907264349614E+26
n4
2.0000257443309E+35
n5
1.3375021303271E+44
2 √n
25860.055239694
3 √n
874.48621025889
4 √n
160.81061917577
5 √n
58.217262388463
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
-668742456
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 668742457 can be divided by 4 positive divisors.
The sum of these divisors (counting 668742457) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111110111000011001100111001
3
Ternary
1201121100122012011
4
Quaternary
213313003030321
5
Quinary
2332144224312
6
Senary
150205245521
8
Octal
4767031471
10
Decimal
668742457
12
Duodecimal
167b638a1
16
Hexadecimal
27dc3339
20
Vigesimal
a8jcg2h
36
Base36
b25gzd
md5
d80ee3dd69f716bc97ff343bd05e1045
sha1
53cae380b25d93afa13144032ab65cceea6fc66b
sha256
f0dd6c9e64a28fc1a46f1eb9f947031d4029ca5c4b1b71b1b1308d2e1c9a7ca5
sha512
abc25ad0b15f0d366b9a814992fe7ac38a2cd86190075e0f7cecc1d90e9f3f9c19ac09c23f607cfe682d6da0f4e0720050d8b66e53c51091062c8f9310e9dad6
ripemd-160
5355509d580fc4467655c277822ad566133d5937
Diameter
1337484914
Circumference
4201832780.1096
Area
1.4049719886368E+18
Volume
1.2527525595962E+27
Surface area
5.6198879545472E+18
Circumference
4201832780.1096
Perimeter
2674969828
Area
447216473794396849
Diagonal
945744652.42411
Surface area
2683298842766381094
Volume
2.9907264349614E+26
Space diagonal
1158295912.7024
Perimeter
2006227371
Area
1.9365041364842E+17
Altitude
579147956.35122
Surface area
1.9365041364842E+17
Volume
3.5246049047251E+25
Height
315248217.4747