30856721 is an odd 8-digits composite number following 30856720
and preceding 30856722 . In scientific notation, it is written as 3.0856721 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 26339040 positive integers (up to 30856721) that are relatively prime to 30856721.
30856721 has 8 divisors, whose sum is 31617000
The reverse of 30856721 is 12765803
Previous prime number is 269
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
thirty million eight hundred fifty-six thousand seven hundred twenty-one
Scientific notation
3.0856721 × 10^7
Engineering notation
3.0856721 × 10^6
Prime Factorization
49 × 269 × 2341
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
30856721
Product of the distinct prime numbers
The prime factorization of 30856721 is 49 × 269 × 2341.
Since it has a total of 3 prime factors.
7 , 10 , 3 , 58 , 85 , 889 , 7291 , 9798 , 37787 , 43957 , 199379 , 757245 , 5527574 , 4131601 , 10498180 , 66251607 , 540277942 , 166690415 , 9408074286 , 8963111199
n×2
61713442
n×3
92570163
n×4
123426884
n×5
154283605
n÷2
15428360.5
n÷3
10285573.666667
n÷3
7714180.25
n÷5
6171344.2
n2
952137230871841
n3
2.9379832886725E+22
n4
9.065653064123E+29
n5
2.7973632728244E+37
2 √n
5554.8826270228
3 √n
313.65334578252
4 √n
74.531084971459
5 √n
31.468058926204
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
-30856720
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 30856721 can be divided by 8 positive divisors.
The sum of these divisors (counting 30856721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110101101101011000010001
3
Ternary
2011001200110112
4
Quaternary
1311231120101
5
Quinary
30344403341
6
Senary
3021211105
8
Octal
165553021
10
Decimal
30856721
12
Duodecimal
a400a95
16
Hexadecimal
1d6d611
20
Vigesimal
9ch1g1
36
Base36
idd75
md5
149efc51970a514eccd06d6a00302bfd
sha1
1e78b3c88c7c9350685a4aa2692e8e7d4514f767
sha256
3319b851dd5cd1e6d9eb2168a084a416ecb1d75f31ff191a7b160e5c26ab8087
sha512
452d3e00bcf91e161484b5059ea3b11744e64f9efcdf7b8e7a13b65f81fd91713c715e03da50ff4f6acaa408a70c7b2c996f3f59852689792cc6ec2ef1c12540
ripemd-160
ad6a7764df3db53cfce9878bc776b86867ddce9b
Diameter
61713442
Circumference
193878496.01494
Area
2.9912273297163E+15
Volume
1.2306595621417E+23
Surface area
1.1964909318865E+16
Circumference
193878496.01494
Perimeter
123426884
Area
952137230871841
Diagonal
43637993.328563
Surface area
5712823385231046
Volume
2.9379832886725E+22
Space diagonal
53445408.526978
Perimeter
92570163
Area
4.1228751491199E+14
Altitude
26722704.263489
Surface area
4.1228751491199E+14
Volume
3.4624465107218E+21
Height
14545997.776188