71399981 is an odd 8-digits composite number following 71399980
and preceding 71399982 . In scientific notation, it is written as 7.1399981 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 68295612 positive integers (up to 71399981) that are relatively prime to 71399981.
71399981 has 4 divisors, whose sum is 74504352
The reverse of 71399981 is 18999317
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
seventy-one million three hundred ninety-nine thousand nine hundred eighty-one
Scientific notation
7.1399981 × 10^7
Engineering notation
7.1399981 × 10^6
Prime Factorization
23 × 3104347
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71399981
Product of the distinct prime numbers
The prime factorization of 71399981 is 23 × 3104347.
Since it has a total of 2 prime factors.
8 , 5 , 14 , 75 , 57 , 146 , 8119 , 7391 , 26851 , 23609 , 190860 , 32749 , 5426322 , 9783548 , 79947212 , 35837881 , 798546397 , 81673516 , 6328429405 , 4479084416
n×2
142799962
n×3
214199943
n×4
285599924
n×5
356999905
n÷2
35699990.5
n÷3
23799993.666667
n÷3
17849995.25
n÷5
14279996.2
n2
5097957286800361
n3
3.6399405341636E+23
n4
2.5989168498041E+31
n5
1.8556261369659E+39
2 √n
8449.8509454309
3 √n
414.85790073756
4 √n
91.923070800702
5 √n
37.216850615059
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
-71399980
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 71399981 can be divided by 4 positive divisors.
The sum of these divisors (counting 71399981) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010000010111101000101101
3
Ternary
11222100111100202
4
Quaternary
10100113220231
5
Quinary
121234244411
6
Senary
11030203245
8
Octal
420275055
10
Decimal
71399981
12
Duodecimal
1bab3525
16
Hexadecimal
4417a2d
20
Vigesimal
1264jj1
36
Base36
16ickt
md5
861fcf4b566edd7cbb573727b31205a3
sha1
172faf599da0f064f08058ecd248dba698f6403e
sha256
0b69c43faec8b187787849876df0c262ca797d4112b578d6165d4fb4c6c2e97a
sha512
68785dc6db8e8f7d7aacaf96a77ed8a5d9a8703a8628c3a8f134cbbbeb266825532f04f98a1d8ed0a012d113286c8ba7839860487e24f05770bc7229bb02c408
ripemd-160
f26664149580952818a47c93b1ef1401cdc3c9da
Diameter
142799962
Circumference
448619311.5521
Area
1.6015705160527E+16
Volume
1.5246947255509E+24
Surface area
6.4062820642106E+16
Circumference
448619311.5521
Perimeter
285599924
Area
5097957286800361
Diagonal
100974821.48338
Surface area
30587743720802166
Volume
3.6399405341636E+23
Space diagonal
123668394.75145
Perimeter
214199943
Area
2.2074802588886E+15
Altitude
61834197.375726
Surface area
2.2074802588886E+15
Volume
4.2897110580381E+22
Height
33658273.827794