157047921 is an odd 9-digits composite number following 157047920
and preceding 157047922 . In scientific notation, it is written as 1.57047921 × 10^8.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 98539776 positive integers (up to 157047921) that are relatively prime to 157047921.
157047921 has 12 divisors, whose sum is 240191172
The reverse of 157047921 is 129740751
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
one hundred fifty-seven million forty-seven thousand nine hundred twenty-one
Scientific notation
1.57047921 × 10^8
Engineering notation
1.57047921 × 10^6
Prime Factorization
3 × 3 × 17 × 1026457
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
52349307
Product of the distinct prime numbers
The prime factorization of 157047921 is 3 × 3 × 17 × 1026457.
Since it has a total of 4 prime factors.
2 , 1 , 20 , 39 , 205 , 232 , 2596 , 1524 , 172 , 19452 , 8405 , 655259 , 8321069 , 5220851 , 80976158 , 74288982 , 979882493 , 571947351 , 8994216845 , 9692338042
n×2
314095842
n×3
471143763
n×4
628191684
n×5
785239605
n÷2
78523960.5
n÷3
52349307
n÷3
39261980.25
n÷5
31409584.2
n2
24664049490422241
n3
3.8734376959119E+24
n4
6.08315337266E+32
n5
9.5534659030039E+40
2 √n
12531.876196324
3 √n
539.52395288305
4 √n
111.94586279235
5 √n
43.571893988912
1 , 3 , 9 , 17 , 51 , 153 , 1026457 , 3079371 , 9238113 , 17449769 , 52349307 , 157047921
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-157047920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 157047921 can be divided by 12 positive divisors.
The sum of these divisors (counting 157047921) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001010111000101110001110001
3
Ternary
101221111212020200
4
Quaternary
21113011301301
5
Quinary
310201013141
6
Senary
23330025413
8
Octal
1127056161
10
Decimal
157047921
12
Duodecimal
44718269
16
Hexadecimal
95c5c71
20
Vigesimal
291ajg1
36
Base36
2li2y9
md5
402bcad52076bbb7a7d9893d94cc7a87
sha1
27cf3c62bc608c09eff18ea97a31fc7a847af546
sha256
41411ad016b5ecc7f355796b02da9017d88bd7a19dee0a63ed477773448fcea8
sha512
f7c985541135880fb16e515d99124c55dfdc4ce06287219145d70de446b45867e0c2c61a1937a951b3c5722e2ea305a174f49845beeb4b84410e2470eb05139e
ripemd-160
7d06a10a377e38c8ab6bdb4281cdeb20b7941e43
Diameter
314095842
Circumference
986761189.7503
Area
7.7484396686886E+16
Volume
1.6225017879486E+25
Surface area
3.0993758674754E+17
Circumference
986761189.7503
Perimeter
628191684
Area
24664049490422241
Diagonal
222099299.8207
Surface area
147984296942533446
Volume
3.8734376959119E+24
Space diagonal
272014978.39506
Perimeter
471143763
Area
1.0679846709451E+16
Altitude
136007489.19753
Surface area
1.0679846709451E+16
Volume
4.5648901021382E+23
Height
74033099.940233