249920987 is an odd 9-digits composite number following 249920986
and preceding 249920988 . In scientific notation, it is written as 2.49920987 × 10^8.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 249869880 positive integers (up to 249920987) that are relatively prime to 249920987.
249920987 has 4 divisors, whose sum is 249972096
The reverse of 249920987 is 789029942
Previous prime number is 5477
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 50
Digital Root 5
Name
two hundred forty-nine million nine hundred twenty thousand nine hundred eighty-seven
Scientific notation
2.49920987 × 10^8
Engineering notation
2.49920987 × 10^6
Prime Factorization
5477 × 45631
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
249920987
Product of the distinct prime numbers
The prime factorization of 249920987 is 5477 × 45631.
Since it has a total of 2 prime factors.
10 , 8 , 76 , 100 , 268 , 964 , 1885 , 2499 , 16429 , 58036 , 612766 , 509710 , 6770135 , 6050178 , 46934992 , 19823958 , 506403090 , 160891252 , 2077214866 , 3702093740
n×2
499841974
n×3
749762961
n×4
999683948
n×5
1249604935
n÷2
124960493.5
n÷3
83306995.666667
n÷3
62480246.75
n÷5
49984197.4
n2
62460499743054169
n3
1.5610189744297E+25
n4
3.9013140281521E+33
n5
9.7502025251271E+41
2 √n
15808.88949294
3 √n
629.89415119315
4 √n
125.73340643178
5 √n
47.814602036111
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
-249920986
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 249920987 can be divided by 4 positive divisors.
The sum of these divisors (counting 249920987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111001010111110111011011
3
Ternary
122102021022010212
4
Quaternary
32321113313123
5
Quinary
1002434432422
6
Senary
40444401335
8
Octal
1671276733
10
Decimal
249920987
12
Duodecimal
6b84624b
16
Hexadecimal
ee57ddb
20
Vigesimal
3i20297
36
Base36
44so9n
md5
216c2c872082259c395a865e08cfd9f0
sha1
aa073c89390130f24cb8dc67a36da280a9f19c3b
sha256
0c00b5e45a75225ef25fc09ea6c5ef9472c57567a5044f5f344219f71ad7942b
sha512
fda06e26bb73ca6df75153aacad6d973ad20c4178d33fd0c6be897f111423a2e63de8c1b7ab3e1abf3747113f491b9e5b6331cd70ab78c35826aa607718c82ae
ripemd-160
52916d3b40726ed576eb740bc8dd0c21e03c9a86
Diameter
499841974
Circumference
1570299873.4742
Area
1.9622544713233E+17
Volume
6.538780989577E+25
Surface area
7.849017885293E+17
Circumference
1570299873.4742
Perimeter
999683948
Area
62460499743054169
Diagonal
353441649.33707
Surface area
374762998458325014
Volume
1.5610189744297E+25
Space diagonal
432875847.36176
Perimeter
749762961
Area
2.7046189755278E+16
Altitude
216437923.68088
Surface area
2.7046189755278E+16
Volume
1.8396785039669E+24
Height
117813883.11236