30897961 is an odd 8-digits composite number following 30897960
and preceding 30897962 . In scientific notation, it is written as 3.0897961 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 30874624 positive integers (up to 30897961) that are relatively prime to 30897961.
30897961 has 4 divisors, whose sum is 30921300
The reverse of 30897961 is 16979803
Previous prime number is 1409
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
thirty million eight hundred ninety-seven thousand nine hundred sixty-one
Scientific notation
3.0897961 × 10^7
Engineering notation
3.0897961 × 10^6
Prime Factorization
1409 × 21929
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30897961
Product of the distinct prime numbers
The prime factorization of 30897961 is 1409 × 21929.
Since it has a total of 2 prime factors.
5 , 10 , 82 , 9 , 530 , 36 , 1377 , 1073 , 37386 , 84936 , 360133 , 723485 , 3359967 , 4780184 , 96857102 , 9389791 , 257787943 , 999753630 , 657871676 , 9935130677
n×2
61795922
n×3
92693883
n×4
123591844
n×5
154489805
n÷2
15448980.5
n÷3
10299320.333333
n÷3
7724490.25
n÷5
6179592.2
n2
954683993957521
n3
2.9497788812624E+22
n4
9.1142152831868E+29
n5
2.8161066836551E+37
2 √n
5558.5934371925
3 √n
313.79301611761
4 √n
74.555975194431
5 √n
31.476465843664
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
-30897960
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 30897961 can be divided by 4 positive divisors.
The sum of these divisors (counting 30897961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101110111011100101001
3
Ternary
2011010210000221
4
Quaternary
1311313130221
5
Quinary
30402213321
6
Senary
3022130041
8
Octal
165673451
10
Decimal
30897961
12
Duodecimal
a420921
16
Hexadecimal
1d77729
20
Vigesimal
9d24i1
36
Base36
ie90p
md5
c1fedc266e80ab2d61da6943aef27844
sha1
edfe02f1eae9d4d130fb79234c21ac8b412c8466
sha256
79884389c1282384c06c25aefc5bb04d746116d18dcffa8107169817ef2efaf0
sha512
faaed9ec4a4f837de5b34ef17c0fb7e8aaafd6b8251d638124c4e41159b31a24243809282dc900c0e8673337022aed73e66ec7beb18b507e2963cb47295ec700
ripemd-160
06b548fdfdacff7584ae7faaa2f9ea4c12533b94
Diameter
61795922
Circumference
194137614.57701
Area
2.9992282219167E+15
Volume
1.2356004884118E+23
Surface area
1.1996912887667E+16
Circumference
194137614.57701
Perimeter
123591844
Area
954683993957521
Diagonal
43696315.495875
Surface area
5728103963745126
Volume
2.9497788812624E+22
Space diagonal
53516838.302282
Perimeter
92693883
Area
4.133902956768E+14
Altitude
26758419.151141
Surface area
4.133902956768E+14
Volume
3.4763477499025E+21
Height
14565438.498625