30887881 is an odd 8-digits prime number following 30887880
and preceding 30887882 . In scientific notation, it is written as 3.0887881 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 30887880 positive integers (up to 30887881) that are relatively prime to 30887881.
30887881 has 2 divisors, whose sum is 30887882
The reverse of 30887881 is 18878803
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
thirty million eight hundred eighty-seven thousand eight hundred eighty-one
Scientific notation
3.0887881 × 10^7
Engineering notation
3.0887881 × 10^6
Prime Factorization
30887881
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
30887881
Product of the distinct prime numbers
The prime factorization of 30887881 is 30887881.
Since it has a total of 1 prime factors.
10 , 7 , 90 , 100 , 879 , 384 , 2340 , 2427 , 6254 , 8424 , 947331 , 673440 , 6541012 , 6051911 , 32172543 , 1820207 , 687334067 , 218788992 , 146256353 , 3347915257
n×2
61775762
n×3
92663643
n×4
123551524
n×5
154439405
n÷2
15443940.5
n÷3
10295960.333333
n÷3
7721970.25
n÷5
6177576.2
n2
954061192670161
n3
2.9468928585914E+22
n4
9.1023275935921E+29
n5
2.8115161153389E+37
2 √n
5557.6866590336
3 √n
313.75888897214
4 √n
74.549893756018
5 √n
31.474411829891
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
30887882
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
15443941
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
5557.6867489991
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999352497
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30887881 can be divided by 2 positive divisors.
The sum of these divisors (counting 30887881) is 30887882, the average is 15443941.
Base
System
Value
2
Binary
1110101110100111111001001
3
Ternary
2011010021012121
4
Quaternary
1311310333021
5
Quinary
30401403011
6
Senary
3022011241
8
Octal
165647711
10
Decimal
30887881
12
Duodecimal
a416b21
16
Hexadecimal
1d74fc9
20
Vigesimal
9d0je1
36
Base36
ie18p
md5
3d9fd49c87b732cb0a3df5c76f12fc45
sha1
30f09d47c17b0f7f1933dc2404fe80d1f570f459
sha256
1f2c62ba9d8f59aadf00d17f6af5a5b1934bfa6b2c4f01e32677ea649ca84c64
sha512
2fe3b43d4e90dca274f5534e5e0da20b67999597a8be21c1f9a8977bcd2437f0856bcabb8e483484d4e5f11aebe4972e047612a8f82f324a9dd9120a50ed94f2
ripemd-160
9dcf2a19844835e058344253385df29bf271aa0e
Diameter
61775762
Circumference
194074280.06911
Area
2.9972716339677E+15
Volume
1.2343915940623E+23
Surface area
1.1989086535871E+16
Circumference
194074280.06911
Perimeter
123551524
Area
954061192670161
Diagonal
43682060.223166
Surface area
5724367156020966
Volume
2.9468928585914E+22
Space diagonal
53499379.230141
Perimeter
92663643
Area
4.1312061480862E+14
Altitude
26749689.615071
Surface area
4.1312061480862E+14
Volume
3.472946539567E+21
Height
14560686.741055