72601981 is an odd 8-digits composite number following 72601980
and preceding 72601982 . In scientific notation, it is written as 7.2601981 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 70597488 positive integers (up to 72601981) that are relatively prime to 72601981.
72601981 has 8 divisors, whose sum is 74626560
The reverse of 72601981 is 18910627
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
seventy-two million six hundred one thousand nine hundred eighty-one
Scientific notation
7.2601981 × 10^7
Engineering notation
7.2601981 × 10^6
Prime Factorization
47 × 157 × 9839
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72601981
Product of the distinct prime numbers
The prime factorization of 72601981 is 47 × 157 × 9839.
Since it has a total of 3 prime factors.
6 , 10 , 54 , 56 , 453 , 15 , 3856 , 5912 , 88550 , 36854 , 956727 , 3440 , 2239601 , 5725964 , 70407673 , 76311028 , 632432998 , 959676517 , 1666638862 , 3574986230
n×2
145203962
n×3
217805943
n×4
290407924
n×5
363009905
n÷2
36300990.5
n÷3
24200660.333333
n÷3
18150495.25
n÷5
14520396.2
n2
5271047645124361
n3
3.8268850098141E+23
n4
2.7783943277171E+31
n5
2.0171693219143E+39
2 √n
8520.6796090453
3 √n
417.17296583536
4 √n
92.307527369361
5 √n
37.341322422177
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72601980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72601981 can be divided by 8 positive divisors.
The sum of these divisors (counting 72601981) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010100111101000101111101
3
Ternary
12001121120012021
4
Quaternary
10110331011331
5
Quinary
122041230411
6
Senary
11112040141
8
Octal
424750575
10
Decimal
72601981
12
Duodecimal
20393051
16
Hexadecimal
453d17d
20
Vigesimal
12df4j1
36
Base36
17841p
md5
9e68e1eaff9035a66a6a82845a8108f9
sha1
7cbabc70f34ae1b832112e6614439205b1b03f1b
sha256
b67d398c6f45d441297f50d8e816537ae8a0766b2b7a598d2ec8a788e6165050
sha512
13b42f044ed13225053e29463e9822b491e92e788b7f73ec82c4e02ec52135543d2bbb66e7e7f38571dd7928346f021e8f1e5b272f27e9feb1e7c325abe248ac
ripemd-160
9dada4542684259139f8f13e71b67451e6528eb4
Diameter
145203962
Circumference
456171700.29133
Area
1.6559484558644E+16
Volume
1.6030018443953E+24
Surface area
6.6237938234578E+16
Circumference
456171700.29133
Perimeter
290407924
Area
5271047645124361
Diagonal
102674706.18535
Surface area
31626285870746166
Volume
3.8268850098141E+23
Space diagonal
125750319.82215
Perimeter
217805943
Area
2.2824305826179E+15
Altitude
62875159.911075
Surface area
2.2824305826179E+15
Volume
4.5100272354345E+22
Height
34224902.061785