157890242 is an even 9-digits composite number following 157890241
and preceding 157890243 . In scientific notation, it is written as 1.57890242 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 78945120 positive integers (up to 157890242) that are relatively prime to 157890242.
157890242 has 4 divisors, whose sum is 236835366
The reverse of 157890242 is 242098751
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred fifty-seven million eight hundred ninety thousand two hundred forty-two
Scientific notation
1.57890242 × 10^8
Engineering notation
1.57890242 × 10^6
Prime Factorization
2 × 78945121
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
157890242
Product of the distinct prime numbers
The prime factorization of 157890242 is 2 × 78945121.
Since it has a total of 2 prime factors.
9 , 5 , 84 , 21 , 235 , 283 , 7042 , 4642 , 2079 , 65141 , 216316 , 657449 , 3816058 , 3783638 , 41427331 , 80282816 , 64615915 , 862156117 , 8654212912 , 860911325
n×2
315780484
n×3
473670726
n×4
631560968
n×5
789451210
n÷2
78945121
n÷3
52630080.666667
n÷3
39472560.5
n÷5
31578048.4
n2
24929328518818564
n3
3.9360977127338E+24
n4
6.2147142039918E+32
n5
9.812427296291E+40
2 √n
12565.438392671
3 √n
540.48680610053
4 √n
112.09566625285
5 √n
43.618533300782
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
-157890241
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 157890242 can be divided by 4 positive divisors.
The sum of these divisors (counting 157890242) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001011010010011011011000010
3
Ternary
102000002122200202
4
Quaternary
21122103123002
5
Quinary
310404441432
6
Senary
23400045202
8
Octal
1132233302
10
Decimal
157890242
12
Duodecimal
44a63802
16
Hexadecimal
96936c2
20
Vigesimal
296g5c2
36
Base36
2m04w2
md5
72ba3f31099d89b4fa575ca2875c503c
sha1
2c84fe15589504ac0d9878b71643d7380916aa67
sha256
8606744da0668ff248aa5437309d51738be7f3934f655c829f199226e38b18a4
sha512
624d7727339476cd1698041d191373527736ac864e7ebe6881db1b9131eaad74cfd2aa438db22915fa80f0945350c2ddda992557aa223a8d2d567dbd58e3f3fa
ripemd-160
c2ed9efe50c995de144204cde8c3ab2cb01ff761
Diameter
315780484
Circumference
992053648.68143
Area
7.8317795333647E+16
Volume
1.6487487544181E+25
Surface area
3.1327118133459E+17
Circumference
992053648.68143
Perimeter
631560968
Area
24929328518818564
Diagonal
223290521.60277
Surface area
149575971112911384
Volume
3.9360977127338E+24
Space diagonal
273473921.16335
Perimeter
473670726
Area
1.0794715898292E+16
Altitude
136736960.58167
Surface area
1.0794715898292E+16
Volume
4.6387356401448E+23
Height
74430173.86759