388664987 is an odd 9-digits prime number following 388664986
and preceding 388664988 . In scientific notation, it is written as 3.88664987 × 10^8.
The sum of its digits is 59. It has a total of 1 prime factors and 2 positive divisors.
There are 388664986 positive integers (up to 388664987) that are relatively prime to 388664987.
388664987 has 2 divisors, whose sum is 388664988
The reverse of 388664987 is 789466883
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 59 Digital Root 5
Name
three hundred eighty-eight million six hundred sixty-four thousand nine hundred eighty-seven
Scientific notation
3.88664987 × 10^8
Engineering notation
3.88664987 × 10^6
Prime Factorization
388664987
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
388664987 Product of the distinct prime numbers
The prime factorization of 388664987 is 388664987.
Since it has a total of 1 prime factors.
3 , 4 , 6 , 47 , 38 , 526 , 7627 , 2886 , 7402 , 84219 , 751004 , 579858 , 2148751 , 4723984 , 25781666 , 92924266 , 798692369 , 223901368 , 3547532871 , 5487945288
n×2
777329974
n×3
1165994961
n×4
1554659948
n×5
1943324935
n÷2
194332493.5
n÷3
129554995.66667
n÷3
97166246.75
n÷5
77732997.4
n2
151060472119710169
n3
5.8711916432621E+25
n4
2.281926623703E+34
n5
8.8690498153647E+42
2 √n19714.588177286
3 √n729.77974652549
4 √n140.40864708873
5 √n52.229405650466
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
388664988 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
194332494 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
19714.588202648 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999948542 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 388664987 can be divided by 2 positive divisors.
The sum of these divisors (counting 388664987) is 388664988, the average is 194332494.
Base
System
Value
2
Binary
10111001010101000111010011011
3
Ternary
1000002100020010112
4
Quaternary
113022220322123
5
Quinary
1243444234422
6
Senary
102322234535
8
Octal
2712507233
10
Decimal
388664987
12
Duodecimal
aa1b5a4b
16
Hexadecimal
172a8e9b
20
Vigesimal
6193297
36
Base36
6feftn
md5
275bbbc772b1253866ab9629d056cdda
sha1
dcf30d15878e8fe9d82491a8d66240dc2540092c
sha256
dbde052267c2309157643d9b376aed26d834e1d06b2bd66c5324ff00a55c21fe
sha512
ca30229fe2f2861d0b350fbf9b6d28cd91afceb25bdbf67b61fec880b59b52adef8eab66cc66784716f852a0e5251b6241acb08ed20e1d4212a9399943723b96
ripemd-160
0d394cc510aaac2f5e4f6567455010f54a6b787b
Diameter
777329974
Circumference
2442054135.7335
Area
4.7457046945909E+17
Volume
2.459319004572E+26
Surface area
1.8982818778363E+18
Circumference
2442054135.7335
Perimeter
1554659948
Area
151060472119710169
Diagonal
549655295.83496
Surface area
906362832718261014
Volume
5.8711916432621E+25
Space diagonal
673187504.6071
Perimeter
1165994961
Area
6.541110318167E+16
Altitude
336593752.30355
Surface area
6.541110318167E+16
Volume
6.9192657076607E+24
Height
183218431.94499