664839987 is an odd 9-digits composite number following 664839986
and preceding 664839988 . In scientific notation, it is written as 6.64839987 × 10^8.
The sum of its digits is 60. It has a total of 4 prime factors and 12 positive divisors.
There are 379907976 positive integers (up to 664839987) that are relatively prime to 664839987.
664839987 has 12 divisors, whose sum is 810214416
The reverse of 664839987 is 789938466
Previous prime number is 7
Is Prime? no Number parity odd Number length 9 Sum of Digits 60 Digital Root 6
Name
six hundred sixty-four million eight hundred thirty-nine thousand nine hundred eighty-seven
Scientific notation
6.64839987 × 10^8
Engineering notation
6.64839987 × 10^6
Prime Factorization
21 × 7 × 7 × 646103
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
94977141 Product of the distinct prime numbers
The prime factorization of 664839987 is 21 × 7 × 7 × 646103.
Since it has a total of 4 prime factors.
7 , 4 , 82 , 13 , 337 , 137 , 8217 , 3972 , 14270 , 32946 , 707534 , 179652 , 5408797 , 518098 , 10264739 , 88528176 , 682080995 , 902223807 , 3746388335 , 299386911
n×2
1329679974
n×3
1994519961
n×4
2659359948
n×5
3324199935
n÷2
332419993.5
n÷3
221613329
n÷3
166209996.75
n÷5
132967997.4
n2
442012208314160169
n3
2.9386739082943E+26
n4
1.9537479229876E+35
n5
1.2989297437204E+44
2 √n25784.491210803
3 √n872.78185905712
4 √n160.57550003286
5 √n58.149157456684
1 , 7 , 21 , 49 , 147 , 1029 , 646103 , 4522721 , 13568163 , 31659047 , 94977141 , 664839987
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
-664839986 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 664839987 can be divided by 12 positive divisors.
The sum of these divisors (counting 664839987) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100111101000001010011100110011
3
Ternary
1201100000101000020
4
Quaternary
213220022130303
5
Quinary
2330144334422
6
Senary
145545454523
8
Octal
4750123463
10
Decimal
664839987
12
Duodecimal
1667a1443
16
Hexadecimal
27a0a733
20
Vigesimal
a7f4jj7
36
Base36
aztttf
md5
46558e1c6c09d7127758eb005c0fc86b
sha1
f172743d20cbf54344ff6ea88eb3aae2da12b398
sha256
5231df990c6b51afc67f37b4e904f1804d141ad1b3af167718cee676dde15306
sha512
dfc6aefca561b5e9ea746d7fce5304bbc7ec634d13653620f5e92114f1d51ab74f9b08b0e35ce4a8a84dd9c199482643b1dfd82b1237084aab1d90040c490885
ripemd-160
1a5d9d7da2ea2544133c4b37c277ec3c2344ab99
Diameter
1329679974
Circumference
4177312837.9439
Area
1.3886223064368E+18
Volume
1.2309488482124E+27
Surface area
5.5544892257471E+18
Circumference
4177312837.9439
Perimeter
2659359948
Area
442012208314160169
Diagonal
940225726.42335
Surface area
2652073249884961014
Volume
2.9386739082943E+26
Space diagonal
1151536636.3874
Perimeter
1994519961
Area
1.9139690059146E+17
Altitude
575768318.19372
Surface area
1.9139690059146E+17
Volume
3.4632604137514E+25
Height
313408575.47445