638996972 is an even 9-digits composite number following 638996971
and preceding 638996973 . In scientific notation, it is written as 6.38996972 × 10^8.
The sum of its digits is 59. It has a total of 4 prime factors and 12 positive divisors.
There are 311705760 positive integers (up to 638996972) that are relatively prime to 638996972.
638996972 has 12 divisors, whose sum is 1145519256
The reverse of 638996972 is 279699836
Previous prime number is 41
Is Prime? no Number parity even Number length 9 Sum of Digits 59 Digital Root 5
Name
six hundred thirty-eight million nine hundred ninety-six thousand nine hundred seventy-two
Scientific notation
6.38996972 × 10^8
Engineering notation
6.38996972 × 10^6
Prime Factorization
2 × 2 × 41 × 3896323
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
319498486 Product of the distinct prime numbers
The prime factorization of 638996972 is 2 × 2 × 41 × 3896323.
Since it has a total of 4 prime factors.
8 , 3 , 95 , 16 , 285 , 394 , 2660 , 9009 , 38550 , 42150 , 744535 , 991134 , 7330838 , 68750 , 29657711 , 85309832 , 841829085 , 361198902 , 5307328137 , 6807607272
n×2
1277993944
n×3
1916990916
n×4
2555987888
n×5
3194984860
n÷2
319498486
n÷3
212998990.66667
n÷3
159749243
n÷5
127799394.4
n2
408317130225168784
n3
2.6091340982961E+26
n4
1.6672287883532E+35
n5
1.0653541473889E+44
2 √n25278.389426544
3 √n861.32344096914
4 √n158.99179043757
5 √n57.689896531145
1 , 2 , 4 , 41 , 82 , 164 , 3896323 , 7792646 , 15585292 , 159749243 , 319498486 , 638996972
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-638996971 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638996972 can be divided by 12 positive divisors.
The sum of these divisors (counting 638996972) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110000101100101000111101100
3
Ternary
1122112101102001112
4
Quaternary
212011211013230
5
Quinary
2302040400342
6
Senary
143223531152
8
Octal
4605450754
10
Decimal
638996972
12
Duodecimal
159bb9ab8
16
Hexadecimal
261651ec
20
Vigesimal
9jdec8c
36
Base36
akfx7w
md5
ab615de772141a9cf59fcb08fc8f5ba0
sha1
0d71d2a1d6acd94208306e2f2871e9721589bc01
sha256
e4ea48e7ba03dea7a0ced698205f96a0cf610002500abb26a6fb39c27edd44ea
sha512
281e0833b1c8d5d0bc8d955428c54d13ba7da2b00cc7bfb035ca2237d6edd26837e57c5c33689039196b45a37f9a6ae042aea7fe1ca0c23996340323599d8438
ripemd-160
4c0d1db9e2e5531a1d3cdcfee977b707b43836a1
Diameter
1277993944
Circumference
4014936385.8026
Area
1.2827660966503E+18
Volume
1.0929115353917E+27
Surface area
5.131064386601E+18
Circumference
4014936385.8026
Perimeter
2555987888
Area
408317130225168784
Diagonal
903678184.11774
Surface area
2449902781351012704
Volume
2.6091340982961E+26
Space diagonal
1106775221.3867
Perimeter
1916990916
Area
1.7680650378768E+17
Altitude
553387610.69333
Surface area
1.7680650378768E+17
Volume
3.0748940232171E+25
Height
301226061.37258