30888921 is an odd 8-digits composite number following 30888920
and preceding 30888922 . In scientific notation, it is written as 3.0888921 × 10^7.
The sum of its digits is 39. It has a total of 5 prime factors and 32 positive divisors.
There are 16982784 positive integers (up to 30888921) that are relatively prime to 30888921.
30888921 has 32 divisors, whose sum is 48885760
The reverse of 30888921 is 12988803
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
thirty million eight hundred eighty-eight thousand nine hundred twenty-one
Scientific notation
3.0888921 × 10^7
Engineering notation
3.0888921 × 10^6
Prime Factorization
3 × 7 × 43 × 79 × 433
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
30888921
Product of the distinct prime numbers
The prime factorization of 30888921 is 3 × 7 × 43 × 79 × 433.
Since it has a total of 5 prime factors.
5 , 3 , 42 , 20 , 741 , 213 , 8502 , 4936 , 12582 , 40650 , 6420 , 739589 , 9028497 , 96139 , 72450597 , 24237755 , 702076865 , 785188342 , 9327163606 , 1907353539
n×2
61777842
n×3
92666763
n×4
123555684
n×5
154444605
n÷2
15444460.5
n÷3
10296307
n÷3
7722230.25
n÷5
6177784.2
n2
954125440544241
n3
2.9471905357061E+22
n4
9.1035535629374E+29
n5
2.8119894682484E+37
2 √n
5557.780222355
3 √n
313.7624103703
4 √n
74.550521274871
5 √n
31.474623776754
1 , 3 , 7 , 21 , 43 , 79 , 129 , 237 , 301 , 433 , 553 , 903 , 1299 , 1659 , 3031 , 3397 , 9093 , 10191 , 18619 , 23779 , 34207 , 55857 , 71337 , 102621 , 130333 , 239449 , 390999 , 718347 , 1470901 , 4412703 , 10296307 , 30888921
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-30888920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30888921 can be divided by 32 positive divisors.
The sum of these divisors (counting 30888921) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1110101110101001111011001
3
Ternary
2011010022122010
4
Quaternary
1311311033121
5
Quinary
30401421141
6
Senary
3022020133
8
Octal
165651731
10
Decimal
30888921
12
Duodecimal
a417649
16
Hexadecimal
1d753d9
20
Vigesimal
9d1261
36
Base36
ie21l
md5
17bb8ab13d62c755d026dc86a9c8b62b
sha1
809e4b9f46e6ca5f95d26fcc663c6e638167c2ea
sha256
75506a8ca3f6c453a4e82449eb78ba75a9f37b35f98028846c617e0437b8a91a
sha512
4756a4271bffe2cd7e2558aca7213629d505b696f96aea90ffd5819c8d9b81b5f53bb9ebc70e1c83fa948342dcf5bded09bad1f2157c1e3e883edae7d82f4c31
ripemd-160
f0390618df41fd61b574100e730238eb20a5e726
Diameter
61777842
Circumference
194080814.58183
Area
2.9974734746169E+15
Volume
1.2345162847605E+23
Surface area
1.1989893898468E+16
Circumference
194080814.58183
Perimeter
123555684
Area
954125440544241
Diagonal
43683531.005271
Surface area
5724752643265446
Volume
2.9471905357061E+22
Space diagonal
53501180.562981
Perimeter
92666763
Area
4.1314843495417E+14
Altitude
26750590.281491
Surface area
4.1314843495417E+14
Volume
3.473297355411E+21
Height
14561177.001757