85812981 is an odd 8-digits composite number following 85812980
and preceding 85812982 . In scientific notation, it is written as 8.5812981 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 57208652 positive integers (up to 85812981) that are relatively prime to 85812981.
85812981 has 4 divisors, whose sum is 114417312
The reverse of 85812981 is 18921858
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-five million eight hundred twelve thousand nine hundred eighty-one
Scientific notation
8.5812981 × 10^7
Engineering notation
8.5812981 × 10^6
Prime Factorization
3 × 28604327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
85812981
Product of the distinct prime numbers
The prime factorization of 85812981 is 3 × 28604327.
Since it has a total of 2 prime factors.
4 , 4 , 21 , 88 , 962 , 795 , 2501 , 6192 , 65911 , 76894 , 641660 , 920359 , 2173840 , 9319079 , 8651586 , 49344372 , 403152123 , 136443947 , 2312549484 , 630307885
n×2
171625962
n×3
257438943
n×4
343251924
n×5
429064905
n÷2
42906490.5
n÷3
28604327
n÷3
21453245.25
n÷5
17162596.2
n2
7363867708106361
n3
6.3191543972224E+23
n4
5.4226547622492E+31
n5
4.6533417008245E+39
2 √n
9263.5296188872
3 √n
441.08030170607
4 √n
96.247231746618
5 √n
38.610959820546
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-85812980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 85812981 can be divided by 4 positive divisors.
The sum of these divisors (counting 85812981) is 1, the average is 0.25.
Base
System
Value
2
Binary
101000111010110011011110101
3
Ternary
12222110202021120
4
Quaternary
11013112123311
5
Quinary
133432003411
6
Senary
12303134153
8
Octal
507263365
10
Decimal
85812981
12
Duodecimal
248a4359
16
Hexadecimal
51d66f5
20
Vigesimal
16g6c91
36
Base36
1f39px
md5
70714000112f95aa9fb1b3ac4d551906
sha1
c511b1513e3bde75eb2dac4c07b40a73ccac74ec
sha256
41b05e44151921850e96809d6dacee53f84ff3225fc41f289d6f4c67cb442488
sha512
657d2d61910aae02eecda3f1b2af215f14a84ee954388e25d355cb648725508a9c11b03df84063aa1696d96e90e11c1815bb28e13435ee87d475ddf04b228e0b
ripemd-160
0f5a6704c5f6e29f903131390e778b02334ca2ae
Diameter
171625962
Circumference
539178861.38448
Area
2.3134272693794E+16
Volume
2.6469612041618E+24
Surface area
9.2537090775176E+16
Circumference
539178861.38448
Perimeter
343251924
Area
7363867708106361
Diagonal
121357881.55786
Surface area
44183206248638166
Volume
6.3191543972224E+23
Space diagonal
148632443.04094
Perimeter
257438943
Area
3.188648252664E+15
Altitude
74316221.520471
Surface area
3.188648252664E+15
Volume
7.447194876068E+22
Height
40452627.185955