28465981 is an odd 8-digits prime number following 28465980
and preceding 28465982 . In scientific notation, it is written as 2.8465981 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 28465980 positive integers (up to 28465981) that are relatively prime to 28465981.
28465981 has 2 divisors, whose sum is 28465982
The reverse of 28465981 is 18956482
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 43 Digital Root 7
Name
twenty-eight million four hundred sixty-five thousand nine hundred eighty-one
Scientific notation
2.8465981 × 10^7
Engineering notation
2.8465981 × 10^6
Prime Factorization
28465981
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
28465981 Product of the distinct prime numbers
The prime factorization of 28465981 is 28465981.
Since it has a total of 1 prime factors.
3 , 1 , 74 , 65 , 977 , 663 , 5967 , 9040 , 57920 , 1057 , 393554 , 616344 , 5185100 , 1001809 , 54212111 , 4347513 , 314150124 , 95685745 , 7228105704 , 5816972316
n×2
56931962
n×3
85397943
n×4
113863924
n×5
142329905
n÷2
14232990.5
n÷3
9488660.3333333
n÷3
7116495.25
n÷5
5693196.2
n2
810312074292361
n3
2.3066328110877E+22
n4
6.5660565774399E+29
n5
1.8690924177833E+37
2 √n5335.3520033827
3 √n305.33415316782
4 √n73.043493915493
5 √n30.96458266397
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
28465982 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
14232991 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
5335.3520970972 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999297407 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28465981 can be divided by 2 positive divisors.
The sum of these divisors (counting 28465981) is 28465982, the average is 14232991.
Base
System
Value
2
Binary
1101100100101101100111101
3
Ternary
1222120012222121
4
Quaternary
1230211230331
5
Quinary
24241402411
6
Senary
2454042541
8
Octal
154455475
10
Decimal
28465981
12
Duodecimal
9649451
16
Hexadecimal
1b25b3d
20
Vigesimal
8hi4j1
36
Base36
gy4hp
md5
0668d65a00218d35a3a687c41d7b7370
sha1
597830c79011a74c41369dd9609d76fbcef5a46f
sha256
00fbec928d435eadfac9c406dc43091594105fbc4071d8fc97410d6e20c13072
sha512
e800c3c93e7b301814701baa1ba9f4709c90a0cd3e20d05edd79c4309e1aea264041432a40b7265fbc795b01dc1b0426b1316a50bb507132c22b84b160b19fef
ripemd-160
601e844fd05a318f20a5be611095e10ca7446741
Diameter
56931962
Circumference
178857033.57365
Area
2.545670459712E+15
Volume
9.662000925123E+22
Surface area
1.0182681838848E+16
Circumference
178857033.57365
Perimeter
113863924
Area
810312074292361
Diagonal
40256976.396455
Surface area
4861872445754166
Volume
2.3066328110877E+22
Space diagonal
49304525.37929
Perimeter
85397943
Area
3.5087542066522E+14
Altitude
24652262.689645
Surface area
3.5087542066522E+14
Volume
2.7183928373792E+21
Height
13418992.132152