157021691 is an odd 9-digits composite number following 157021690
and preceding 157021692 . In scientific notation, it is written as 1.57021691 × 10^8.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 156802584 positive integers (up to 157021691) that are relatively prime to 157021691.
157021691 has 4 divisors, whose sum is 157240800
The reverse of 157021691 is 196120751
Previous prime number is 719
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 32
Digital Root 5
Name
one hundred fifty-seven million twenty-one thousand six hundred ninety-one
Scientific notation
1.57021691 × 10^8
Engineering notation
1.57021691 × 10^6
Prime Factorization
719 × 218389
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
157021691
Product of the distinct prime numbers
The prime factorization of 157021691 is 719 × 218389.
Since it has a total of 2 prime factors.
2 , 2 , 31 , 59 , 822 , 597 , 6709 , 4238 , 27122 , 64253 , 591450 , 929854 , 5846288 , 7362302 , 55640574 , 86190704 , 648179440 , 866783080 , 5300794926 , 6399544651
n×2
314043382
n×3
471065073
n×4
628086764
n×5
785108455
n÷2
78510845.5
n÷3
52340563.666667
n÷3
39255422.75
n÷5
31404338.2
n2
24655811444499481
n3
3.8714972059925E+24
n4
6.0790903798671E+32
n5
9.5454905118857E+40
2 √n
12530.829621378
3 √n
539.49391427841
4 √n
111.94118822568
5 √n
43.570438424097
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
-157021690
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 157021691 can be divided by 4 positive divisors.
The sum of these divisors (counting 157021691) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010110111111010111111011
3
Ternary
101221110112021012
4
Quaternary
21112333113323
5
Quinary
310144143231
6
Senary
23325304135
8
Octal
1126772773
10
Decimal
157021691
12
Duodecimal
4470504b
16
Hexadecimal
95bf5fb
20
Vigesimal
2917e4b
36
Base36
2lhipn
md5
fe6758cb3e921fa1dabb60b7b1c8ed93
sha1
d76f79c3cc00474d7d38dc45aa4dbb5fa9fce536
sha256
8ace08a91ca6d524fb7f1f041dcd0e6197a503f61fb75258cc5cc284eecfe3ec
sha512
d54f8faa856296f7307b19983221a27b920ddb94524a5485d6d791d9551e176fc5956ffae2187e3e1a24841dbb78858f553a197d04be67256baa22c87ed958e4
ripemd-160
7fff143fd4a4e50d206fac783aa8454c51b57d33
Diameter
314043382
Circumference
986596381.79969
Area
7.7458516102335E+16
Volume
1.6216889574319E+25
Surface area
3.0983406440934E+17
Circumference
986596381.79969
Perimeter
628086764
Area
24655811444499481
Diagonal
222062204.99896
Surface area
147934868666996886
Volume
3.8714972059925E+24
Space diagonal
271969546.70238
Perimeter
471065073
Area
1.0676279530928E+16
Altitude
135984773.35119
Surface area
1.0676279530928E+16
Volume
4.5626032128367E+23
Height
74020734.999652