156991009 is an odd 9-digits composite number following 156991008
and preceding 156991010 . In scientific notation, it is written as 1.56991009 × 10^8.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 131281440 positive integers (up to 156991009) that are relatively prime to 156991009.
156991009 has 8 divisors, whose sum is 183794688
The reverse of 156991009 is 900199651
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred fifty-six million nine hundred ninety-one thousand nine
Scientific notation
1.56991009 × 10^8
Engineering notation
1.56991009 × 10^6
Prime Factorization
7 × 41 × 547007
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
156991009
Product of the distinct prime numbers
The prime factorization of 156991009 is 7 × 41 × 547007.
Since it has a total of 3 prime factors.
5 , 1 , 44 , 76 , 544 , 500 , 2220 , 2642 , 99964 , 27511 , 865849 , 343942 , 8800242 , 2080164 , 36538354 , 87836147 , 806491129 , 70408429 , 7049873075 , 1187013308
n×2
313982018
n×3
470973027
n×4
627964036
n×5
784955045
n÷2
78495504.5
n÷3
52330336.333333
n÷3
39247752.25
n÷5
31398201.8
n2
24646176906838081
n3
3.869228180597E+24
n4
6.0743403612316E+32
n5
9.5361682231917E+40
2 √n
12529.605301046
3 √n
539.4587729965
4 √n
111.93571950475
5 √n
43.568735560395
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-156991008
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 156991009 can be divided by 8 positive divisors.
The sum of these divisors (counting 156991009) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001010110110111111000100001
3
Ternary
101221101222011211
4
Quaternary
21112313320201
5
Quinary
310142203014
6
Senary
23324510121
8
Octal
1126677041
10
Decimal
156991009
12
Duodecimal
446ab341
16
Hexadecimal
95b7e21
20
Vigesimal
2913ha9
36
Base36
2lgv1d
md5
3c9132ec4a42160b6ea6d52a29607f90
sha1
d8a5900cd21ff056b351f28068b234056d311088
sha256
eb56292e7b1cdb0446ada105f3f3fa8c3dd956f6764dffd7e18ccec3bbc64cc3
sha512
1792b21732103232a33dfb7702fe970593b26356ed48365104c882794c8836cd28ad760a3be4f96fc27f7b1598f34c88b09ad3f113253267290e431e77377653
ripemd-160
75be61f0b1f132eecd85cf78e21be99bbf41a06a
Diameter
313982018
Circumference
986403601.1081
Area
7.7428248309597E+16
Volume
1.6207385102968E+25
Surface area
3.0971299323839E+17
Circumference
986403601.1081
Perimeter
627964036
Area
24646176906838081
Diagonal
222018814.09844
Surface area
147877061441028486
Volume
3.869228180597E+24
Space diagonal
271916403.9195
Perimeter
470973027
Area
1.0672107653744E+16
Altitude
135958201.95975
Surface area
1.0672107653744E+16
Volume
4.5599291407637E+23
Height
74006271.366146