156913221 is an odd 9-digits composite number following 156913220
and preceding 156913222 . In scientific notation, it is written as 1.56913221 × 10^8.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 104608812 positive integers (up to 156913221) that are relatively prime to 156913221.
156913221 has 4 divisors, whose sum is 209217632
The reverse of 156913221 is 122319651
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 30
Digital Root 3
Name
one hundred fifty-six million nine hundred thirteen thousand two hundred twenty-one
Scientific notation
1.56913221 × 10^8
Engineering notation
1.56913221 × 10^6
Prime Factorization
3 × 52304407
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
156913221
Product of the distinct prime numbers
The prime factorization of 156913221 is 3 × 52304407.
Since it has a total of 2 prime factors.
9 , 8 , 75 , 100 , 233 , 529 , 7016 , 9776 , 65817 , 61215 , 576009 , 829863 , 6941001 , 7996221 , 37922849 , 4635942 , 528049090 , 886754520 , 239663804 , 266811442
n×2
313826442
n×3
470739663
n×4
627652884
n×5
784566105
n÷2
78456610.5
n÷3
52304407
n÷3
39228305.25
n÷5
31382644.2
n2
24621758924594841
n3
3.8634794995437E+24
n4
6.0623101254087E+32
n5
9.5125660847879E+40
2 √n
12526.500748413
3 √n
539.36965886596
4 √n
111.9218510766
5 √n
43.564417100709
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
-156913220
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 156913221 can be divided by 4 positive divisors.
The sum of these divisors (counting 156913221) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010110100100111001000101
3
Ternary
101221021000110210
4
Quaternary
21112210321011
5
Quinary
310132210341
6
Senary
23323110033
8
Octal
1126447105
10
Decimal
156913221
12
Duodecimal
44672319
16
Hexadecimal
95a4e45
20
Vigesimal
290e311
36
Base36
2lf70l
md5
83d6caead6a46135bc091c8411f63b02
sha1
d883f09c728485dec7cfffecaa5689fc745d55c9
sha256
a068a851da3a16829935406cff156f366845da2444928efcf10aa87fac6e9370
sha512
1aa87f7031e0333f0f6b32bce3fc2714912a2f97e7901e864b610b74731a7b63d8e6514f6c557b2df524dd02122d5c9e5a65c3ccc36fb285f4eca260a2d25cdd
ripemd-160
cb56aa085975ede3baf001f5b782668b95c79947
Diameter
313826442
Circumference
985914844.68942
Area
7.7351536955966E+16
Volume
1.6183305084082E+25
Surface area
3.0940614782386E+17
Circumference
985914844.68942
Perimeter
627652884
Area
24621758924594841
Diagonal
221908805.25385
Surface area
147730553547569046
Volume
3.8634794995437E+24
Space diagonal
271781671.15128
Perimeter
470739663
Area
1.0661534357278E+16
Altitude
135890835.57564
Surface area
1.0661534357278E+16
Volume
4.5531542551709E+23
Height
73969601.751282