30890987 is an odd 8-digits composite number following 30890986
and preceding 30890988 . In scientific notation, it is written as 3.0890987 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 30869280 positive integers (up to 30890987) that are relatively prime to 30890987.
30890987 has 4 divisors, whose sum is 30912696
The reverse of 30890987 is 78909803
Previous prime number is 1531
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
thirty million eight hundred ninety thousand nine hundred eighty-seven
Scientific notation
3.0890987 × 10^7
Engineering notation
3.0890987 × 10^6
Prime Factorization
1531 × 20177
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30890987
Product of the distinct prime numbers
The prime factorization of 30890987 is 1531 × 20177.
Since it has a total of 2 prime factors.
6 , 1 , 41 , 54 , 483 , 668 , 319 , 427 , 49679 , 95200 , 539697 , 855777 , 1727865 , 2548324 , 9538467 , 97140613 , 22917659 , 332163870 , 3736048923 , 3010897319
n×2
61781974
n×3
92672961
n×4
123563948
n×5
154454935
n÷2
15445493.5
n÷3
10296995.666667
n÷3
7722746.75
n÷5
6178197.4
n2
954253077834169
n3
2.9477819422085E+22
n4
9.1059893655598E+29
n5
2.8129299911365E+37
2 √n
5557.9660848192
3 √n
313.76940552873
4 √n
74.551767818202
5 √n
31.475044800416
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
-30890986
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 30890987 can be divided by 4 positive divisors.
The sum of these divisors (counting 30890987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101110101101111101011
3
Ternary
2011010102110122
4
Quaternary
1311311233223
5
Quinary
30402002422
6
Senary
3022033455
8
Octal
165655753
10
Decimal
30890987
12
Duodecimal
a41888b
16
Hexadecimal
1d75beb
20
Vigesimal
9d1797
36
Base36
ie3mz
md5
bef457d95f6f152397f636ef81fbdbfd
sha1
a5432b1e736379b857d14261a2aebd241a9e1a4b
sha256
281ec9aa8f4a7e2c74bee00601643441d73aee599bf266696d47d40d04c3613c
sha512
482ee07b9e6fc0543da78c558caacb88881c4d17f63fc5e73894c170ea54eba29cb9b41399ef438abd23d6b06c0b2f78b614dc090cd103cb4adf1bc59f697931
ripemd-160
c2a7cd41b5606506ce4e62c9f15fd76872973f33
Diameter
61781974
Circumference
194093795.64268
Area
2.9978744589893E+15
Volume
1.2347640125369E+23
Surface area
1.1991497835957E+16
Circumference
194093795.64268
Perimeter
123563948
Area
954253077834169
Diagonal
43686452.770491
Surface area
5725518467005014
Volume
2.9477819422085E+22
Space diagonal
53504758.97995
Perimeter
92672961
Area
4.1320370352194E+14
Altitude
26752379.489975
Surface area
4.1320370352194E+14
Volume
3.4739943346582E+21
Height
14562150.923497