27991930 is an even 8-digits composite number following 27991929
and preceding 27991931 . In scientific notation, it is written as 2.7991930 × 10^7.
The sum of its digits is 40. It has a total of 5 prime factors and 32 positive divisors.
There are 10750080 positive integers (up to 27991930) that are relatively prime to 27991930.
27991930 has 32 divisors, whose sum is 52436160
The reverse of 27991930 is 03919972
Previous prime number is 67
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-seven million nine hundred ninety-one thousand nine hundred thirty
Scientific notation
2.7991930 × 10^7
Engineering notation
2.7991930 × 10^6
Prime Factorization
2 × 5 × 41 × 67 × 1019
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
27991930
Product of the distinct prime numbers
The prime factorization of 27991930 is 2 × 5 × 41 × 67 × 1019.
Since it has a total of 5 prime factors.
4 , 9 , 70 , 90 , 301 , 230 , 3383 , 7002 , 76661 , 78368 , 649685 , 265470 , 4877371 , 5226815 , 99302407 , 26950762 , 295230085 , 55280040 , 6866531215 , 1337085116
n×2
55983860
n×3
83975790
n×4
111967720
n×5
139959650
n÷2
13995965
n÷3
9330643.3333333
n÷3
6997982.5
n÷5
5598386
n2
783548145124900
n3
2.1933024829966E+22
n4
6.1394769572867E+29
n5
1.7185580922498E+37
2 √n
5290.740023853
3 √n
303.62972144038
4 √n
72.737473312269
5 √n
30.860756558449
1 , 2 , 5 , 10 , 41 , 67 , 82 , 134 , 205 , 335 , 410 , 670 , 1019 , 2038 , 2747 , 5095 , 5494 , 10190 , 13735 , 27470 , 41779 , 68273 , 83558 , 136546 , 208895 , 341365 , 417790 , 682730 , 2799193 , 5598386 , 13995965 , 27991930
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
-27991929
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 27991930 can be divided by 32 positive divisors.
The sum of these divisors (counting 27991930) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1101010110001111101111010
3
Ternary
1221200010201011
4
Quaternary
1222301331322
5
Quinary
24131220210
6
Senary
2435544134
8
Octal
152617572
10
Decimal
27991930
12
Duodecimal
945b04a
16
Hexadecimal
1ab1f7a
20
Vigesimal
8eijga
36
Base36
gnypm
md5
416da8e19b60b992255090973c5bf7cf
sha1
e233c6f3aa24b3154c955f88b6633e3b1a1fc568
sha256
ea685e5c7e8eabbcbbda04d1329a8f17469af55ee377dbb76c6bc823b9637d4b
sha512
2c58b31c0f1e4bf0c2636b8093be9061c543341a908404d744ccffc5a72be2dd1464e15b85a68e866ba21d93a16fe21e990fae1a7198af0edb9716cf4e20d81f
ripemd-160
2911c55e3b7ee51924bcf9775550666785d6fe7e
Diameter
55983860
Circumference
175878483.2956
Area
2.4615890964583E+15
Volume
9.1872839569098E+22
Surface area
9.8463563858332E+15
Circumference
175878483.2956
Perimeter
111967720
Area
783548145124900
Diagonal
39586567.042998
Surface area
4701288870749400
Volume
2.1933024829966E+22
Space diagonal
48483444.961911
Perimeter
83975790
Area
3.3928629938317E+14
Altitude
24241722.480956
Surface area
3.3928629938317E+14
Volume
2.584831764867E+21
Height
13195522.347666