156985021 is an odd 9-digits composite number following 156985020
and preceding 156985022 . In scientific notation, it is written as 1.56985021 × 10^8.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 147750592 positive integers (up to 156985021) that are relatively prime to 156985021.
156985021 has 4 divisors, whose sum is 166219452
The reverse of 156985021 is 120589651
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 37
Digital Root 1
Name
one hundred fifty-six million nine hundred eighty-five thousand twenty-one
Scientific notation
1.56985021 × 10^8
Engineering notation
1.56985021 × 10^6
Prime Factorization
17 × 9234413
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
156985021
Product of the distinct prime numbers
The prime factorization of 156985021 is 17 × 9234413.
Since it has a total of 2 prime factors.
2 , 6 , 21 , 8 , 733 , 762 , 1001 , 6338 , 71289 , 98972 , 216767 , 103232 , 4318729 , 1728294 , 38811357 , 3315647 , 321806755 , 958191262 , 8113135973 , 2783132173
n×2
313970042
n×3
470955063
n×4
627940084
n×5
784925105
n÷2
78492510.5
n÷3
52328340.333333
n÷3
39246255.25
n÷5
31397004.2
n2
24644296818370441
n3
3.8687854535621E+24
n4
6.0734136567194E+32
n5
9.5343497044179E+40
2 √n
12529.366344712
3 √n
539.4519141744
4 √n
111.93465211771
5 √n
43.568403192865
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
-156985020
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 156985021 can be divided by 4 positive divisors.
The sum of these divisors (counting 156985021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010110110110011010111101
3
Ternary
101221101122222001
4
Quaternary
21112312122331
5
Quinary
310142010041
6
Senary
23324422301
8
Octal
1126663275
10
Decimal
156985021
12
Duodecimal
446a7991
16
Hexadecimal
95b66bd
20
Vigesimal
29132b1
36
Base36
2lgqf1
md5
c8ef2c9ad4d274283d2331421ea45939
sha1
45dde1f9e9ba1f5c4234c6a7c3dc22d415c809dc
sha256
38c9f1f733b0210edc8bad54af754edf685cbd37a00acb4d39da50ced4f9c828
sha512
bee720e071cc3c64fc016892a2234d4dba3038888962586f93c1933c5838d80fb8654d1ad45ba26d3cb4a3159d3387864db1fb4a380b08b4567994435999e871
ripemd-160
3c425295fd5da365bba8d6854c14adf194737e1e
Diameter
313970042
Circumference
986365977.39448
Area
7.7422341837479E+16
Volume
1.6205530612301E+25
Surface area
3.0968936734992E+17
Circumference
986365977.39448
Perimeter
627940084
Area
24644296818370441
Diagonal
222010345.78763
Surface area
147865780910222646
Volume
3.8687854535621E+24
Space diagonal
271906032.39927
Perimeter
470955063
Area
1.0671293551556E+16
Altitude
135953016.19963
Surface area
1.0671293551556E+16
Volume
4.5594073819494E+23
Height
74003448.595875