157029921 is an odd 9-digits composite number following 157029920
and preceding 157029922 . In scientific notation, it is written as 1.57029921 × 10^8.
The sum of its digits is 36. It has a total of 5 prime factors and 20 positive divisors.
There are 102772800 positive integers (up to 157029921) that are relatively prime to 157029921.
157029921 has 20 divisors, whose sum is 235088964
The reverse of 157029921 is 129920751
Previous prime number is 3721
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
one hundred fifty-seven million twenty-nine thousand nine hundred twenty-one
Scientific notation
1.57029921 × 10^8
Engineering notation
1.57029921 × 10^6
Prime Factorization
9 × 3 × 3 × 3721 × 521
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
52343307
Product of the distinct prime numbers
The prime factorization of 157029921 is 9 × 3 × 3 × 3721 × 521.
Since it has a total of 5 prime factors.
2 , 9 , 75 , 16 , 697 , 526 , 7528 , 2713 , 45437 , 92144 , 626230 , 792022 , 5756108 , 2322833 , 62634675 , 15340767 , 37201795 , 869022514 , 3777719895 , 7962445111
n×2
314059842
n×3
471089763
n×4
628119684
n×5
785149605
n÷2
78514960.5
n÷3
52343307
n÷3
39257480.25
n÷5
31405984.2
n2
24658396089266241
n3
3.8721059898842E+24
n4
6.0803649769514E+32
n5
9.5479923198185E+40
2 √n
12531.158007144
3 √n
539.50333963724
4 √n
111.94265499417
5 √n
43.570895147226
1 , 3 , 9 , 27 , 81 , 521 , 1563 , 3721 , 4689 , 11163 , 14067 , 33489 , 42201 , 100467 , 301401 , 1938641 , 5815923 , 17447769 , 52343307 , 157029921
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-157029920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 157029921 can be divided by 20 positive divisors.
The sum of these divisors (counting 157029921) is 1, the average is 0.05.
Base
System
Value
2
Binary
1001010111000001011000100001
3
Ternary
101221110221120000
4
Quaternary
21113001120201
5
Quinary
310144424141
6
Senary
23325410213
8
Octal
1127013041
10
Decimal
157029921
12
Duodecimal
44709969
16
Hexadecimal
95c1621
20
Vigesimal
2918eg1
36
Base36
2lhp29
md5
a5e165b4ddad3f5bbac08226961b382d
sha1
efea256ef613330ef1e378343e9a37d92f7661e5
sha256
a9cf2107619816c1c08dab4de7254e89d7cfcfc17a2d4528dbbd501452c614af
sha512
788f6253095687994ea3a3d3bc1a86d979ca3d17191883fa7dde9f1bddc9325dd4f29cb08a8f1268104d17d74f2cdd74f61893ff3e7204e79c5ad506af5beb4b
ripemd-160
1dc24c2a2441ec6afa3859d678c3d24080469a62
Diameter
314059842
Circumference
986648092.41477
Area
7.7466636003346E+16
Volume
1.6219439642322E+25
Surface area
3.0986654401338E+17
Circumference
986648092.41477
Perimeter
628119684
Area
24658396089266241
Diagonal
222073843.97658
Surface area
147950376535597446
Volume
3.8721059898842E+24
Space diagonal
271983801.48053
Perimeter
471089763
Area
1.0677398714942E+16
Altitude
135991900.74026
Surface area
1.0677398714942E+16
Volume
4.5633206715336E+23
Height
74024614.658859