30781321 is an odd 8-digits prime number following 30781320
and preceding 30781322 . In scientific notation, it is written as 3.0781321 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 30781320 positive integers (up to 30781321) that are relatively prime to 30781321.
30781321 has 2 divisors, whose sum is 30781322
The reverse of 30781321 is 12318703
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
thirty million seven hundred eighty-one thousand three hundred twenty-one
Scientific notation
3.0781321 × 10^7
Engineering notation
3.0781321 × 10^6
Prime Factorization
30781321
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
30781321
Product of the distinct prime numbers
The prime factorization of 30781321 is 30781321.
Since it has a total of 1 prime factors.
3 , 3 , 50 , 73 , 462 , 679 , 411 , 9557 , 85958 , 1089 , 101805 , 802251 , 997379 , 5440879 , 44977203 , 21903936 , 53577685 , 143376808 , 1403030576 , 4938029430
n×2
61562642
n×3
92343963
n×4
123125284
n×5
153906605
n÷2
15390660.5
n÷3
10260440.333333
n÷3
7695330.25
n÷5
6156264.2
n2
947489722505041
n3
2.9164985292629E+22
n4
8.9773677425268E+29
n5
2.7633523821776E+37
2 √n
5548.0916538933
3 √n
313.39766133093
4 √n
74.485513047124
5 √n
31.452665105408
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
30781322
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
15390661
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
5548.0917440143
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999350255
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30781321 can be divided by 2 positive divisors.
The sum of these divisors (counting 30781321) is 30781322, the average is 15390661.
Base
System
Value
2
Binary
1110101011010111110001001
3
Ternary
2010220212000221
4
Quaternary
1311122332021
5
Quinary
30340000241
6
Senary
3015430041
8
Octal
165327611
10
Decimal
30781321
12
Duodecimal
a385321
16
Hexadecimal
1d5af89
20
Vigesimal
9c7d61
36
Base36
ibr0p
md5
9c1e8e2b8590207512a3f448531658d6
sha1
ad8fb5681e03c4416e0b5841287a3e035d176245
sha256
ce3208aa1c9cd1e0f2f3eccc4c34f9ad523e8f46d4ca7cd79fdd498ba802a114
sha512
426f19740909193dc43eb8385c1258f29385da82a7a6795a959e53826e5ab21ac95ac59c58e1cf28f903c0a47421fdef675805fe2215ae6a6d8f16eff98167a2
ripemd-160
6d8cb8b7f68f300e5c2f21fdb123c10887ea97cb
Diameter
61562642
Circumference
193404743.84278
Area
2.9766267515737E+15
Volume
1.221660047165E+23
Surface area
1.1906507006295E+16
Circumference
193404743.84278
Perimeter
123125284
Area
947489722505041
Diagonal
43531361.62596
Surface area
5684938335030246
Volume
2.9164985292629E+22
Space diagonal
53314811.896087
Perimeter
92343963
Area
4.1027508475702E+14
Altitude
26657405.948043
Surface area
4.1027508475702E+14
Volume
3.4371264789373E+21
Height
14510453.87532