99971809 is an odd 8-digits composite number following 99971808
and preceding 99971810 . In scientific notation, it is written as 9.9971809 × 10^7.
The sum of its digits is 52. It has a total of 5 prime factors and 16 positive divisors.
There are 85354080 positive integers (up to 99971809) that are relatively prime to 99971809.
99971809 has 16 divisors, whose sum is 117043200
The reverse of 99971809 is 90817999
Previous prime number is 383
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
ninety-nine million nine hundred seventy-one thousand eight hundred nine
Scientific notation
9.9971809 × 10^7
Engineering notation
9.9971809 × 10^6
Prime Factorization
7 × 7 × 7 × 383 × 761
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2040241
Product of the distinct prime numbers
The prime factorization of 99971809 is 7 × 7 × 7 × 383 × 761.
Since it has a total of 5 prime factors.
6 , 6 , 6 , 62 , 614 , 162 , 8704 , 1498 , 51594 , 89659 , 682970 , 962666 , 8425734 , 2603053 , 25625679 , 74871190 , 404046687 , 142098976 , 9551537982 , 4635818161
n×2
199943618
n×3
299915427
n×4
399887236
n×5
499859045
n÷2
49985904.5
n÷3
33323936.333333
n÷3
24992952.25
n÷5
19994361.8
n2
9994362594732481
n3
9.9915450839734E+23
n4
9.9887283674988E+31
n5
9.9859124450847E+39
2 √n
9998.5903506444
3 √n
464.11526225168
4 √n
99.992951504816
5 √n
39.808472194347
1 , 7 , 49 , 343 , 383 , 761 , 2681 , 5327 , 18767 , 37289 , 131369 , 261023 , 291463 , 2040241 , 14281687 , 99971809
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-99971808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 99971809 can be divided by 16 positive divisors.
The sum of these divisors (counting 99971809) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101111101010111001011100001
3
Ternary
20222010002112121
4
Quaternary
11331113023201
5
Quinary
201043044214
6
Senary
13530424241
8
Octal
575271341
10
Decimal
99971809
12
Duodecimal
29592081
16
Hexadecimal
5f572e1
20
Vigesimal
1b4g9a9
36
Base36
1niqqp
md5
2f100dda44ad8ca3093d9136913075b9
sha1
b274ae0fb59103cd937bd7b8002e52da56b74750
sha256
1ec66d52ec7fd0dca1b0764c1f836c1aa3b6ef971926c08abdbbae03e1bc8275
sha512
3bb0c61c3bb8b8e1c4bd0cf3150a8b04bf47dc890d395690ba5bc3506c09e18704e7b6defb0b16d49da88697097e42723ce7e014b9168c38256a121a2de58a5b
ripemd-160
596f083b9d18108665bb2391e656e7d28a4083df
Diameter
199943618
Circumference
628141401.44096
Area
3.1398216104924E+16
Volume
4.1852486178429E+24
Surface area
1.255928644197E+17
Circumference
628141401.44096
Perimeter
399887236
Area
9994362594732481
Diagonal
141381488.14277
Surface area
59966175568394886
Volume
9.9915450839734E+23
Space diagonal
173156252.51257
Perimeter
299915427
Area
4.3276859508356E+15
Altitude
86578126.256286
Surface area
4.3276859508356E+15
Volume
1.1775148805681E+23
Height
47127162.714258