157211881 is an odd 9-digits composite number following 157211880
and preceding 157211882 . In scientific notation, it is written as 1.57211881 × 10^8.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 152140500 positive integers (up to 157211881) that are relatively prime to 157211881.
157211881 has 4 divisors, whose sum is 162283264
The reverse of 157211881 is 188112751
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 34
Digital Root 7
Name
one hundred fifty-seven million two hundred eleven thousand eight hundred eighty-one
Scientific notation
1.57211881 × 10^8
Engineering notation
1.57211881 × 10^6
Prime Factorization
31 × 5071351
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
157211881
Product of the distinct prime numbers
The prime factorization of 157211881 is 31 × 5071351.
Since it has a total of 2 prime factors.
5 , 4 , 6 , 53 , 399 , 369 , 9184 , 3546 , 82993 , 81913 , 599144 , 942576 , 5334054 , 7404945 , 95885614 , 28485130 , 253767408 , 818819307 , 4509239528 , 6992800338
n×2
314423762
n×3
471635643
n×4
628847524
n×5
786059405
n÷2
78605940.5
n÷3
52403960.333333
n÷3
39302970.25
n÷5
31442376.2
n2
24715575527558161
n3
3.885582118685E+24
n4
6.1085967365843E+32
n5
9.6034398322888E+40
2 √n
12538.416207799
3 √n
539.71164417291
4 √n
111.97506958158
5 √n
43.580988112757
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
-157211880
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 157211881 can be divided by 4 positive divisors.
The sum of these divisors (counting 157211881) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010111101101110011101001
3
Ternary
101221211012011021
4
Quaternary
21113231303221
5
Quinary
310221240011
6
Senary
23333332441
8
Octal
1127556351
10
Decimal
157211881
12
Duodecimal
44797121
16
Hexadecimal
95edce9
20
Vigesimal
292b9e1
36
Base36
2lllgp
md5
c22666b583ddf81b8ba3b7c3361100f3
sha1
7ad6940cac40a6a9ac995960483f9fcb0197f204
sha256
6a109ba6598029f87f37c34f05352f6f1d0d4f3d45adf6b990a5f28e8a37ffff
sha512
b7d3f69f62cc1842a4580d87805b1839307c3fe14ee6d50f9b80135c9700f007e610340b3a1567a4c84ba7c24271593e6fc5fac29bde8714e10afda685a1865d
ripemd-160
b7c5320e88a96816f6eafda08dc85c1e8046f809
Diameter
314423762
Circumference
987791380.81327
Area
7.764627050662E+16
Volume
1.6275888318641E+25
Surface area
3.1058508202648E+17
Circumference
987791380.81327
Perimeter
628847524
Area
24715575527558161
Diagonal
222331174.27639
Surface area
148293453165348966
Volume
3.885582118685E+24
Space diagonal
272298965.44547
Perimeter
471635643
Area
1.0702158138009E+16
Altitude
136149482.72274
Surface area
1.0702158138009E+16
Volume
4.5792024416322E+23
Height
74110391.425462