30891013 is an odd 8-digits composite number following 30891012
and preceding 30891014 . In scientific notation, it is written as 3.0891013 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 30868108 positive integers (up to 30891013) that are relatively prime to 30891013.
30891013 has 4 divisors, whose sum is 30913920
The reverse of 30891013 is 31019803
Previous prime number is 1439
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
thirty million eight hundred ninety-one thousand thirteen
Scientific notation
3.0891013 × 10^7
Engineering notation
3.0891013 × 10^6
Prime Factorization
1439 × 21467
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30891013
Product of the distinct prime numbers
The prime factorization of 30891013 is 1439 × 21467.
Since it has a total of 2 prime factors.
5 , 3 , 48 , 69 , 944 , 862 , 3983 , 5833 , 39936 , 60328 , 449725 , 104629 , 9034176 , 9915453 , 77037723 , 74258760 , 708649023 , 278253911 , 1449295272 , 6877982609
n×2
61782026
n×3
92673039
n×4
123564052
n×5
154455065
n÷2
15445506.5
n÷3
10297004.333333
n÷3
7722753.25
n÷5
6178202.6
n2
954254684166169
n3
2.9477893853888E+22
n4
9.1060200225307E+29
n5
2.8129418289426E+37
2 √n
5557.9684238038
3 √n
313.76949355875
4 √n
74.551783505184
5 √n
31.475050098731
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-30891012
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30891013 can be divided by 4 positive divisors.
The sum of these divisors (counting 30891013) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101110101110000000101
3
Ternary
2011010102111121
4
Quaternary
1311311300011
5
Quinary
30402003023
6
Senary
3022033541
8
Octal
165656005
10
Decimal
30891013
12
Duodecimal
a4188b1
16
Hexadecimal
1d75c05
20
Vigesimal
9d17ad
36
Base36
ie3np
md5
72da5e7a787135abf0b3c7fb15e94508
sha1
322b3acbffb01bc5a6ebe8a4b62eb4d0ca56f1ea
sha256
56dce738d3aac3f73703c69d08d8826b43dce2b601b599af59eabc590b2d947b
sha512
a20c85ef5bceaf11851c169e48a68587fcaf6b82a29ee7e3f7bf08711ed32b9d5baf4e263f459a198b035583a21c382dba2e3e807c4aa48837bb78d0112ce657
ripemd-160
a70fd90abac74e18b141d18e3a8b1d73acb0239b
Diameter
61782026
Circumference
194093959.00549
Area
2.9978795054301E+15
Volume
1.234767130329E+23
Surface area
1.199151802172E+16
Circumference
194093959.00549
Perimeter
123564052
Area
954254684166169
Diagonal
43686489.540044
Surface area
5725528104997014
Volume
2.9477893853888E+22
Space diagonal
53504804.013271
Perimeter
92673039
Area
4.132043990841E+14
Altitude
26752402.006635
Surface area
4.132043990841E+14
Volume
3.4740031065302E+21
Height
14562163.180015