638969908 is an even 9-digits composite number following 638969907
and preceding 638969909 . In scientific notation, it is written as 6.38969908 × 10^8.
The sum of its digits is 58. It has a total of 4 prime factors and 12 positive divisors.
There are 313456832 positive integers (up to 638969908) that are relatively prime to 638969908.
638969908 has 12 divisors, whose sum is 1139295780
The reverse of 638969908 is 809969836
Previous prime number is 53
Is Prime? no Number parity even Number length 9 Sum of Digits 58 Digital Root 4
Name
six hundred thirty-eight million nine hundred sixty-nine thousand nine hundred eight
Scientific notation
6.38969908 × 10^8
Engineering notation
6.38969908 × 10^6
Prime Factorization
2 × 2 × 53 × 3014009
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
319484954 Product of the distinct prime numbers
The prime factorization of 638969908 is 2 × 2 × 53 × 3014009.
Since it has a total of 4 prime factors.
5 , 1 , 99 , 28 , 900 , 278 , 8949 , 1595 , 69365 , 1435 , 340436 , 579916 , 4037866 , 13063 , 55965964 , 1284581 , 848499766 , 607359465 , 2128935716 , 5354644858
n×2
1277939816
n×3
1916909724
n×4
2555879632
n×5
3194849540
n÷2
319484954
n÷3
212989969.33333
n÷3
159742477
n÷5
127793981.6
n2
408282543329528464
n3
2.6088025914927E+26
n4
1.6669463518763E+35
n5
1.0651285570993E+44
2 √n25277.85410196
3 √n861.31128066805
4 √n158.99010693109
5 √n57.689407844694
1 , 2 , 4 , 53 , 106 , 212 , 3014009 , 6028018 , 12056036 , 159742477 , 319484954 , 638969908
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
-638969907 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 638969908 can be divided by 12 positive divisors.
The sum of these divisors (counting 638969908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110000101011110100000110100
3
Ternary
1122112100000221011
4
Quaternary
212011132200310
5
Quinary
2302034014113
6
Senary
143223202004
8
Octal
4605364064
10
Decimal
638969908
12
Duodecimal
159ba6304
16
Hexadecimal
2615e834
20
Vigesimal
9jdb4f8
36
Base36
akfcc4
md5
f3dc43e54893193a18f943fb45cfca80
sha1
ee62413985dff1239712ef318100769cbf1e1199
sha256
d0afaf32a18b4fcbaee45f86a061160096913269eb92a129cd0519f54101b463
sha512
5312afc988bc6f207a4abf25f8e49fe712dd3a1ed1b2efc9277aaf3928b65838228372102d27b51bc3e5eb7c9e45552eb772359e3d54d2f973a23e7dd33ec130
ripemd-160
e74e404384560d52b0bd70fe03352eb0176d9ae4
Diameter
1277939816
Circumference
4014766337.6755
Area
1.282657438713E+18
Volume
1.0927726741466E+27
Surface area
5.130629754852E+18
Circumference
4014766337.6755
Perimeter
2555879632
Area
408282543329528464
Diagonal
903639909.84189
Surface area
2449695259977170784
Volume
2.6088025914927E+26
Space diagonal
1106728345.1636
Perimeter
1916909724
Area
1.7679152722255E+17
Altitude
553364172.58181
Surface area
1.7679152722255E+17
Volume
3.0745033387026E+25
Height
301213303.28063