75087981 is an odd 8-digits composite number following 75087980
and preceding 75087982 . In scientific notation, it is written as 7.5087981 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors.
There are 47246976 positive integers (up to 75087981) that are relatively prime to 75087981.
75087981 has 24 divisors, whose sum is 114595520
The reverse of 75087981 is 18978057
Previous prime number is 1303
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-five million eighty-seven thousand nine hundred eighty-one
Scientific notation
7.5087981 × 10^7
Engineering notation
7.5087981 × 10^6
Prime Factorization
3 × 3 × 19 × 1303 × 337
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
25029327
Product of the distinct prime numbers
The prime factorization of 75087981 is 3 × 3 × 19 × 1303 × 337.
Since it has a total of 5 prime factors.
7 , 10 , 66 , 30 , 534 , 464 , 8258 , 8510 , 85037 , 64736 , 668710 , 252237 , 9815687 , 9819345 , 78713380 , 38038789 , 631016471 , 331043458 , 1459217312 , 9337147666
n×2
150175962
n×3
225263943
n×4
300351924
n×5
375439905
n÷2
37543990.5
n÷3
25029327
n÷3
18771995.25
n÷5
15017596.2
n2
5638204890656361
n3
4.2336142170371E+23
n4
3.1789354389021E+31
n5
2.3869984383651E+39
2 √n
8665.3321344309
3 √n
421.88117054349
4 √n
93.087765761301
5 √n
37.593614648496
1 , 3 , 9 , 19 , 57 , 171 , 337 , 1011 , 1303 , 3033 , 3909 , 6403 , 11727 , 19209 , 24757 , 57627 , 74271 , 222813 , 439111 , 1317333 , 3951999 , 8343109 , 25029327 , 75087981
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-75087980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 75087981 can be divided by 24 positive divisors.
The sum of these divisors (counting 75087981) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100011110011100000001101101
3
Ternary
12020021212100100
4
Quaternary
10132130001231
5
Quinary
123210303411
6
Senary
11241221313
8
Octal
436340155
10
Decimal
75087981
12
Duodecimal
21191839
16
Hexadecimal
479c06d
20
Vigesimal
1395jj1
36
Base36
18pe99
md5
a47defc9c649a7d7f4521f8d478057d6
sha1
948aed4abae6376f4a64a905e3e995bd4ee9b5ff
sha256
44d5594f52ce24e86c4baf9716cc70d487ca1cd974f291878364900f30e185bb
sha512
ee35107f7e549706ec445aec0328db9703cb1b6e0f5312a8a93eeeee59fd271c67624c92e8d860dd6a464970baccb1fb4ae5f80e603260a0bb604b717fa8a7e5
ripemd-160
e48485f8db8f0b95716e4e2b0e22b16ad5e88b5b
Diameter
150175962
Circumference
471791698.96498
Area
1.771294306392E+16
Volume
1.7733721763169E+24
Surface area
7.085177225568E+16
Circumference
471791698.96498
Perimeter
300351924
Area
5638204890656361
Diagonal
106190441.10141
Surface area
33829229343938166
Volume
4.2336142170371E+23
Space diagonal
130056198.12977
Perimeter
225263943
Area
2.441414333525E+15
Altitude
65028099.064883
Surface area
2.441414333525E+15
Volume
4.9893622029912E+22
Height
35396813.700471