157021421 is an odd 9-digits prime number following 157021420
and preceding 157021422 . In scientific notation, it is written as 1.57021421 × 10^8.
The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors.
There are 157021420 positive integers (up to 157021421) that are relatively prime to 157021421.
157021421 has 2 divisors, whose sum is 157021422
The reverse of 157021421 is 124120751
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 23
Digital Root 5
Name
one hundred fifty-seven million twenty-one thousand four hundred twenty-one
Scientific notation
1.57021421 × 10^8
Engineering notation
1.57021421 × 10^6
Prime Factorization
157021421
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
157021421
Product of the distinct prime numbers
The prime factorization of 157021421 is 157021421.
Since it has a total of 1 prime factors.
1 , 4 , 65 , 3 , 775 , 216 , 360 , 9387 , 41916 , 39302 , 955711 , 31270 , 1112409 , 1163828 , 12130078 , 5673339 , 32389970 , 557116423 , 4024130981 , 9390541365
n×2
314042842
n×3
471064263
n×4
628085684
n×5
785107105
n÷2
78510710.5
n÷3
52340473.666667
n÷3
39255355.25
n÷5
31404284.2
n2
24655726652859241
n3
3.8714772348195E+24
n4
6.0790485678051E+32
n5
9.5454084444478E+40
2 √n
12530.818847944
3 √n
539.49360505693
4 √n
111.94114010472
5 √n
43.570423440146
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
157021422
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
78510711
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
12530.818887846
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999872629
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 157021421 can be divided by 2 positive divisors.
The sum of these divisors (counting 157021421) is 157021422, the average is 78510711.
Base
System
Value
2
Binary
1001010110111111010011101101
3
Ternary
101221110111220012
4
Quaternary
21112333103231
5
Quinary
310144141141
6
Senary
23325303005
8
Octal
1126772355
10
Decimal
157021421
12
Duodecimal
44704a65
16
Hexadecimal
95bf4ed
20
Vigesimal
2917db1
36
Base36
2lhii5
md5
0ad6263d16120674d4371f078f3ceaea
sha1
08ac050e4e16bb9f83ce355fb00c66234432e061
sha256
10eb9c576354d27d9261431bdefc227b7df21f83d01db492e185fb2dce39b826
sha512
274cd47eb483f6c693e85f1f0f4cb4c4ec7ab99962ef24afa046c99fbf7d2e7faf5f26666d29380163b5f65a19259f2e6e8bf492a08f0f925316c50be83a148d
ripemd-160
029aa0c083bf6a4772deae913a6f913fa54761ad
Diameter
314042842
Circumference
986594685.33966
Area
7.7458249721541E+16
Volume
1.6216805919266E+25
Surface area
3.0983299888616E+17
Circumference
986594685.33966
Perimeter
628085684
Area
24655726652859241
Diagonal
222061823.1613
Surface area
147934359917155446
Volume
3.8714772348195E+24
Space diagonal
271969079.04866
Perimeter
471064263
Area
1.0676242815071E+16
Altitude
135984539.52433
Surface area
1.0676242815071E+16
Volume
4.5625796765837E+23
Height
74020607.720432