388646989 is an odd 9-digits prime number following 388646988
and preceding 388646990 . In scientific notation, it is written as 3.88646989 × 10^8.
The sum of its digits is 61. It has a total of 1 prime factors and 2 positive divisors.
There are 388646988 positive integers (up to 388646989) that are relatively prime to 388646989.
388646989 has 2 divisors, whose sum is 388646990
The reverse of 388646989 is 989646883
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 61
Digital Root 7
Name
three hundred eighty-eight million six hundred forty-six thousand nine hundred eighty-nine
Scientific notation
3.88646989 × 10^8
Engineering notation
3.88646989 × 10^6
Prime Factorization
388646989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
388646989
Product of the distinct prime numbers
The prime factorization of 388646989 is 388646989.
Since it has a total of 1 prime factors.
5 , 8 , 33 , 29 , 697 , 772 , 3435 , 4272 , 37092 , 83951 , 552393 , 815555 , 1395983 , 9360572 , 49498612 , 7238195 , 234418323 , 588770061 , 3137287031 , 1577115006
n×2
777293978
n×3
1165940967
n×4
1554587956
n×5
1943234945
n÷2
194323494.5
n÷3
129548996.33333
n÷3
97161747.25
n÷5
77729397.8
n2
151046482058766121
n3
5.8703760451182E+25
n4
2.2815039742329E+34
n5
8.8669964997716E+42
2 √n
19714.131707991
3 √n
729.76848165809
4 √n
140.40702157652
5 √n
52.228921921657
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
388646990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
194323495
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
19714.131733353
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999948539
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 388646989 can be divided by 2 positive divisors.
The sum of these divisors (counting 388646989) is 388646990, the average is 194323495.
Base
System
Value
2
Binary
10111001010100100100001001101
3
Ternary
1000002022022102221
4
Quaternary
113022210201031
5
Quinary
1243443200424
6
Senary
102322015341
8
Octal
2712444115
10
Decimal
388646989
12
Duodecimal
aa1a7551
16
Hexadecimal
172a484d
20
Vigesimal
6190h99
36
Base36
6fe1xp
md5
25f76399bc5fbfc687447c591bda8b49
sha1
39e54fdfee8118dd95d0417612e152c84ca8674f
sha256
83cb3113941c22973410160fc32dc34ac62e72d9b9d9210e3544e99ab746dca8
sha512
bb91a68e3aac4f225973d22d24ac4380370b7cf3579d86829955d2535009017c1e3e619ea1bb8573bf4662e2bb7837a47b752ba9e3ef1945d25595a84402cbab
ripemd-160
402a304a59fffb7791a5234f577e25ee8e64acbd
Diameter
777293978
Circumference
2441941050.9644
Area
4.745265183864E+17
Volume
2.4589773676204E+26
Surface area
1.8981060735456E+18
Circumference
2441941050.9644
Perimeter
1554587956
Area
151046482058766121
Diagonal
549629842.81927
Surface area
906278892352596726
Volume
5.8703760451182E+25
Space diagonal
673156331.15666
Perimeter
1165940967
Area
6.5405045307581E+16
Altitude
336578165.57833
Surface area
6.5405045307581E+16
Volume
6.9183045160302E+24
Height
183209947.60642