47981918 is an even 8-digits composite number following 47981917
and preceding 47981919 . In scientific notation, it is written as 4.7981918 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 23970240 positive integers (up to 47981918) that are relatively prime to 47981918.
47981918 has 8 divisors, whose sum is 72035040
The reverse of 47981918 is 81918974
Previous prime number is 1231
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
forty-seven million nine hundred eighty-one thousand nine hundred eighteen
Scientific notation
4.7981918 × 10^7
Engineering notation
4.7981918 × 10^6
Prime Factorization
2 × 1231 × 19489
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
47981918
Product of the distinct prime numbers
The prime factorization of 47981918 is 2 × 1231 × 19489.
Since it has a total of 3 prime factors.
6 , 5 , 69 , 61 , 555 , 976 , 6220 , 8189 , 28711 , 91066 , 341327 , 913069 , 880831 , 5226430 , 49394070 , 72605509 , 399692911 , 847426355 , 2497723109 , 2334371906
n×2
95963836
n×3
143945754
n×4
191927672
n×5
239909590
n÷2
23990959
n÷3
15993972.666667
n÷3
11995479.5
n÷5
9596383.6
n2
2302264454958724
n3
1.1046706429214E+23
n4
5.3004216205664E+30
n5
2.5432439556344E+38
2 √n
6926.8981514095
3 √n
363.37847787021
4 √n
83.22798899054
5 √n
34.372848258573
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
-47981917
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 47981918 can be divided by 8 positive divisors.
The sum of these divisors (counting 47981918) is 1, the average is 0.125.
Base
System
Value
2
Binary
10110111000010010101011110
3
Ternary
10100021201211002
4
Quaternary
2313002111132
5
Quinary
44240410133
6
Senary
4432230302
8
Octal
267022536
10
Decimal
47981918
12
Duodecimal
1409b392
16
Hexadecimal
2dc255e
20
Vigesimal
ejhefi
36
Base36
skf32
md5
269f47908509ead37a0aae3a1edf77a3
sha1
a564fee7c3773472016010d286a5ae791a2e72be
sha256
a8dabde7e7fca36548e395aa653285d07b1bbe9ad7c73054b533e47af1fd30d4
sha512
26697de2e4e06c2b4dca6abe3669cb80257991ab9c8d23639f2c7fa711ef43ea041a0ff13be82f2d1898523bf41331fcd96f4dfa2f2251ef32e54c16fc3c6137
ripemd-160
fbd253d6cf6dfacfb84be495d3a77749d61dc734
Diameter
95963836
Circumference
301479282.1879
Area
7.2327770983192E+15
Volume
4.6272335685844E+23
Surface area
2.8931108393277E+16
Circumference
301479282.1879
Perimeter
191927672
Area
2302264454958724
Diagonal
67856679.184274
Surface area
13813586729752344
Volume
1.1046706429214E+23
Space diagonal
83107119.820604
Perimeter
143945754
Area
9.9690975211209E+14
Altitude
41553559.910302
Surface area
9.9690975211209E+14
Volume
1.3018668376458E+22
Height
22618893.061425