247997989 is an odd 9-digits composite number following 247997988
and preceding 247997990 . In scientific notation, it is written as 2.47997989 × 10^8.
The sum of its digits is 64. It has a total of 2 prime factors and 4 positive divisors.
There are 233409856 positive integers (up to 247997989) that are relatively prime to 247997989.
247997989 has 4 divisors, whose sum is 262586124
The reverse of 247997989 is 989799742
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 64
Digital Root 1
Name
two hundred forty-seven million nine hundred ninety-seven thousand nine hundred eighty-nine
Scientific notation
2.47997989 × 10^8
Engineering notation
2.47997989 × 10^6
Prime Factorization
17 × 14588117
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
247997989
Product of the distinct prime numbers
The prime factorization of 247997989 is 17 × 14588117.
Since it has a total of 2 prime factors.
4 , 4 , 79 , 4 , 573 , 901 , 1595 , 3797 , 93651 , 22925 , 881885 , 360925 , 4651871 , 3622994 , 91076018 , 41129955 , 181599061 , 100465515 , 2254583243 , 4803835074
n×2
495995978
n×3
743993967
n×4
991991956
n×5
1239989945
n÷2
123998994.5
n÷3
82665996.333333
n÷3
61999497.25
n÷5
49599597.8
n2
61503002548044121
n3
1.5252620949377E+25
n4
3.7826193224247E+33
n5
9.3808198511387E+41
2 √n
15747.95189858
3 √n
628.27443227033
4 √n
125.49084388345
5 √n
47.740793356328
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-247997988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 247997989 can be divided by 4 positive divisors.
The sum of these divisors (counting 247997989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110010000010011000100101
3
Ternary
122021122121021201
4
Quaternary
32302002120211
5
Quinary
1001441413424
6
Senary
40335242501
8
Octal
1662023045
10
Decimal
247997989
12
Duodecimal
6b079431
16
Hexadecimal
ec82625
20
Vigesimal
3h9jej9
36
Base36
43ngh1
md5
da0eaf1c7b638f8bf386b3ee6ace7f21
sha1
bccc589a87d3cc6e3322804f40cfc75f0cabee85
sha256
2ef3a33f0704cdbbf5e852c328dc8860b78287dd51da494099b54f3287f39c54
sha512
740f546b6a8a7067297e7d6ebe982f1c1e6b7116b8d4d420ad694edea170edd05a9aa5d17a2b1641a477388fa04e5bd185fbd9b04da896c27dcac5005279f4df
ripemd-160
8731780b40b89f723ebf51cafef0ae76daea3d9b
Diameter
495995978
Circumference
1558217320.6949
Area
1.9321738097865E+17
Volume
6.3890029230069E+25
Surface area
7.728695239146E+17
Circumference
1558217320.6949
Perimeter
991991956
Area
61503002548044121
Diagonal
350722119.48505
Surface area
369018015288264726
Volume
1.5252620949377E+25
Space diagonal
429545117.12291
Perimeter
743993967
Area
2.6631581307813E+16
Altitude
214772558.56145
Surface area
2.6631581307813E+16
Volume
1.7975386173621E+24
Height
116907373.16168