85156721 is an odd 8-digits composite number following 85156720
and preceding 85156722 . In scientific notation, it is written as 8.5156721 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 74001600 positive integers (up to 85156721) that are relatively prime to 85156721.
85156721 has 16 divisors, whose sum is 97241088
The reverse of 85156721 is 12765158
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-five million one hundred fifty-six thousand seven hundred twenty-one
Scientific notation
8.5156721 × 10^7
Engineering notation
8.5156721 × 10^6
Prime Factorization
37 × 13 × 31 × 5711
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
85156721
Product of the distinct prime numbers
The prime factorization of 85156721 is 37 × 13 × 31 × 5711.
Since it has a total of 4 prime factors.
5 , 9 , 64 , 75 , 651 , 507 , 2277 , 8169 , 30726 , 17779 , 922059 , 105410 , 6387920 , 8423610 , 9553038 , 17024682 , 838616020 , 950612251 , 8333952719 , 8690888788
n×2
170313442
n×3
255470163
n×4
340626884
n×5
425783605
n÷2
42578360.5
n÷3
28385573.666667
n÷3
21289180.25
n÷5
17031344.2
n2
7251667131471841
n3
6.1752819469962E+23
n4
5.2586676185669E+31
n5
4.4781089122604E+39
2 √n
9228.0399327268
3 √n
439.95302701029
4 √n
96.062687515636
5 √n
38.551722400119
1 , 13 , 31 , 37 , 403 , 481 , 1147 , 5711 , 14911 , 74243 , 177041 , 211307 , 2301533 , 2746991 , 6550517 , 85156721
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-85156720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 85156721 can be divided by 16 positive divisors.
The sum of these divisors (counting 85156721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101000100110110001101110001
3
Ternary
12221020102001122
4
Quaternary
11010312031301
5
Quinary
133300003341
6
Senary
12241112025
8
Octal
504661561
10
Decimal
85156721
12
Duodecimal
24628615
16
Hexadecimal
5136371
20
Vigesimal
16c4bg1
36
Base36
1ep7ch
md5
f7ae8245e336d6de9dae00fa9ab4af26
sha1
cbf701abbce2389f1c0a0585e539a5438fef2a1b
sha256
feee136e01104a94e060678581274315ed6a363b12b11ceefd35ec40ec63d48e
sha512
861d779d48610dafa2f4d5ae017d317e9166a065c2eb965b07e341a156159e514b28c33d5172b06b0eb33a0369ce23c882c24591d9506adb79f4740dc798cca7
ripemd-160
5d1c751b24ca29904d5b45a759b8f43a8d56b357
Diameter
170313442
Circumference
535055458.19479
Area
2.2781784186511E+16
Volume
2.5866960531372E+24
Surface area
9.1127136746042E+16
Circumference
535055458.19479
Perimeter
340626884
Area
7251667131471841
Diagonal
120429789.76542
Surface area
43510002788831046
Volume
6.1752819469962E+23
Space diagonal
147495767.37797
Perimeter
255470163
Area
3.1400639778216E+15
Altitude
73747883.688984
Surface area
3.1400639778216E+15
Volume
7.2776395674331E+22
Height
40143263.255141