51981491 is an odd 8-digits prime number following 51981490
and preceding 51981492 . In scientific notation, it is written as 5.1981491 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 51981490 positive integers (up to 51981491) that are relatively prime to 51981491.
51981491 has 2 divisors, whose sum is 51981492
The reverse of 51981491 is 19418915
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
fifty-one million nine hundred eighty-one thousand four hundred ninety-one
Scientific notation
5.1981491 × 10^7
Engineering notation
5.1981491 × 10^6
Prime Factorization
51981491
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
51981491
Product of the distinct prime numbers
The prime factorization of 51981491 is 51981491.
Since it has a total of 1 prime factors.
9 , 7 , 4 , 16 , 731 , 54 , 9962 , 1445 , 9947 , 69724 , 453074 , 529133 , 9688815 , 1677865 , 63075387 , 28177332 , 85854946 , 552690168 , 5000009877 , 7629867703
n×2
103962982
n×3
155944473
n×4
207925964
n×5
259907455
n÷2
25990745.5
n÷3
17327163.666667
n÷3
12995372.75
n÷5
10396298.2
n2
2702075406583081
n3
1.4045790842862E+23
n4
7.3012115028611E+30
n5
3.7952786002507E+38
2 √n
7209.8190684649
3 √n
373.20682513853
4 √n
84.910653445047
5 √n
34.927680562809
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
51981492
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
25990746
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
7209.8191378148
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999615248
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 51981491 can be divided by 2 positive divisors.
The sum of these divisors (counting 51981491) is 51981492, the average is 25990746.
Base
System
Value
2
Binary
11000110010010110010110011
3
Ternary
10121210221012102
4
Quaternary
3012102302303
5
Quinary
101301401431
6
Senary
5054051015
8
Octal
306226263
10
Decimal
51981491
12
Duodecimal
154a9a6b
16
Hexadecimal
3192cb3
20
Vigesimal
g4hdeb
36
Base36
uy56b
md5
09a2e73684566101c817eac792c2a2e8
sha1
e0f4430ef75f7ea3b0452902879b46b1ddf7efe4
sha256
6078c5f5ee8c4383fbe0ea994586eb42b4cd107f9fce03a28d7d1ea9faca9cff
sha512
0701306e6aebd73153f9dd8e5e42eb4ec8865c1fe4ce3cafbee458a161dfec63f537ac0f8ee518005cb8bad15d95d92fdc6254374756c790602e83131b0610a0
ripemd-160
91614c51f22c85472fcf9c68715587a442f7b2e3
Diameter
103962982
Circumference
326609340.49649
Area
8.4888202467671E+15
Volume
5.8834871101059E+23
Surface area
3.3955280987068E+16
Circumference
326609340.49649
Perimeter
207925964
Area
2702075406583081
Diagonal
73512929.564575
Surface area
16212452439498486
Volume
1.4045790842862E+23
Space diagonal
90034583.465184
Perimeter
155944473
Area
1.1700329725211E+15
Altitude
45017291.732592
Surface area
1.1700329725211E+15
Volume
1.6553123253526E+22
Height
24504309.854858