30721871 is an odd 8-digits prime number following 30721870
and preceding 30721872 . In scientific notation, it is written as 3.0721871 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 30721870 positive integers (up to 30721871) that are relatively prime to 30721871.
30721871 has 2 divisors, whose sum is 30721872
The reverse of 30721871 is 17812703
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
thirty million seven hundred twenty-one thousand eight hundred seventy-one
Scientific notation
3.0721871 × 10^7
Engineering notation
3.0721871 × 10^6
Prime Factorization
30721871
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
30721871
Product of the distinct prime numbers
The prime factorization of 30721871 is 30721871.
Since it has a total of 1 prime factors.
8 , 1 , 21 , 96 , 572 , 474 , 234 , 8054 , 88641 , 28064 , 917321 , 722676 , 9760027 , 7304224 , 74931275 , 71849622 , 273934544 , 817407439 , 1022725219 , 701859830
n×2
61443742
n×3
92165613
n×4
122887484
n×5
153609355
n÷2
15360935.5
n÷3
10240623.666667
n÷3
7680467.75
n÷5
6144374.2
n2
943833357740641
n3
2.8996326662005E+22
n4
8.9082140718397E+29
n5
2.7367700355544E+37
2 √n
5542.7313663933
3 √n
313.19576942602
4 √n
74.449522271088
5 √n
31.440506386351
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
30721872
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
15360936
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
5542.7314566015
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999348998
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30721871 can be divided by 2 positive divisors.
The sum of these divisors (counting 30721871) is 30721872, the average is 15360936.
Base
System
Value
2
Binary
1110101001100011101001111
3
Ternary
2010210211111002
4
Quaternary
1311030131033
5
Quinary
30331044441
6
Senary
3014250515
8
Octal
165143517
10
Decimal
30721871
12
Duodecimal
a356a3b
16
Hexadecimal
1d4c74f
20
Vigesimal
9c04db
36
Base36
iah5b
md5
858fac50c60e8664951c9e9d6d15f560
sha1
666ba13d847ee03a0e8c5519c28fa1fa5c6ee4ac
sha256
c51395ee31b62338027e29e5448d80789035bf37f367e98faadc5a6c2e9a7ced
sha512
594d29df9b67e034a8584fa31ccf353a5c7f8d2460a14476fedd81ec566ce28c88511b47a368a116d87bc4303e4c243c33ee14def211b3c01496878037cf3c53
ripemd-160
5bdc6a9eaa72d02eff2d8d260281429ba4c73324
Diameter
61443742
Circumference
193031208.47627
Area
2.965139942891E+15
Volume
1.2145952909659E+23
Surface area
1.1860559771564E+16
Circumference
193031208.47627
Perimeter
122887484
Area
943833357740641
Diagonal
43447286.629677
Surface area
5663000146443846
Volume
2.8996326662005E+22
Space diagonal
53211841.475577
Perimeter
92165613
Area
4.0869183237128E+14
Altitude
26605920.737788
Surface area
4.0869183237128E+14
Volume
3.4172498687007E+21
Height
14482428.876559