247988 is an even 6-digits composite number following 247987
and preceding 247989 . In scientific notation, it is written as 2.47988 × 10^5.
The sum of its digits is 38. It has a total of 5 prime factors and 24 positive divisors.
There are 108000 positive integers (up to 247988) that are relatively prime to 247988.
247988 has 24 divisors, whose sum is 493920
The reverse of 247988 is 889742
Previous prime number is 13
Is Prime? no
Number parity even
Number length 6
Sum of Digits 38
Digital Root 2
Name
two hundred forty-seven thousand nine hundred eighty-eight
Scientific notation
2.47988 × 10^5
Engineering notation
2.47988 × 10^3
Prime Factorization
2 × 2 × 19 × 13 × 251
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
123994
Product of the distinct prime numbers
The prime factorization of 247988 is 2 × 2 × 19 × 13 × 251.
Since it has a total of 5 prime factors.
9 , 3 , 88 , 96 , 491 , 235 , 7582 , 8873 , 16733 , 80883 , 813363 , 189219 , 5884403 , 6993250 , 81009547 , 12831084 , 402755911 , 439098102 , 6521634915 , 9892403929
n×2
495976
n×3
743964
n×4
991952
n×5
1239940
n÷2
123994
n÷3
82662.666666667
n÷3
61997
n÷5
49597.6
n2
61498048144
n3
15250777963134272
n4
3.7820099255217E+21
n5
9.3789307741029E+26
2 √n
497.98393548387
3 √n
62.826599682886
4 √n
22.315553667428
5 √n
11.991848500932
1 , 2 , 4 , 13 , 19 , 26 , 38 , 52 , 76 , 247 , 251 , 494 , 502 , 988 , 1004 , 3263 , 4769 , 6526 , 9538 , 13052 , 19076 , 61997 , 123994 , 247988
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-247987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 247988 can be divided by 24 positive divisors.
The sum of these divisors (counting 247988) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
111100100010110100
3
Ternary
110121011202
4
Quaternary
330202310
5
Quinary
30413423
6
Senary
5152032
8
Octal
744264
10
Decimal
247988
12
Duodecimal
bb618
16
Hexadecimal
3c8b4
20
Vigesimal
1ajj8
36
Base36
5bck
md5
da7a96608efbb65fda47fb8a63249789
sha1
7d503452e27f66c7283d7536c6ec4a4cdf815ce7
sha256
6aaa4221070679a71cd6c624a3ed71451d31d35fdac1a7e8806dcded3c9b10e7
sha512
4a68d43e99a76d0206259be655a1aaa82f3369afc48e4b647a6cc79e11c9d93263c10e146ac0cb25d61910b42ca8eae67f93d89384e3cd75ee4a06f2b1f2e104
ripemd-160
b2ee2bdef011a559ad31fa1b90b4b6de4bc4676a
Diameter
495976
Circumference
1558154.5579569
Area
193201816259.3
Volume
6.3882309347349E+16
Surface area
772807265037.21
Circumference
1558154.5579569
Perimeter
991952
Area
61498048144
Diagonal
350707.99290578
Surface area
368988288864
Volume
15250777963134272
Space diagonal
429527.81566739
Perimeter
743964
Area
26629435987.931
Altitude
214763.9078337
Surface area
26629435987.931
Volume
1.7973214193504E+15
Height
116902.66430193