987291387 is an odd 9-digits composite number following 987291386
and preceding 987291388 . In scientific notation, it is written as 9.87291387 × 10^8.
The sum of its digits is 54. It has a total of 4 prime factors and 12 positive divisors.
There are 640405008 positive integers (up to 987291387) that are relatively prime to 987291387.
987291387 has 12 divisors, whose sum is 1464630960
The reverse of 987291387 is 783192789
Previous prime number is 37
Is Prime? no Number parity odd Number length 9 Sum of Digits 54 Digital Root 9
Name
nine hundred eighty-seven million two hundred ninety-one thousand three hundred eighty-seven
Scientific notation
9.87291387 × 10^8
Engineering notation
9.87291387 × 10^6
Prime Factorization
3 × 3 × 37 × 2964839
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
329097129 Product of the distinct prime numbers
The prime factorization of 987291387 is 3 × 3 × 37 × 2964839.
Since it has a total of 4 prime factors.
1 , 9 , 18 , 87 , 329 , 868 , 9908 , 3562 , 16890 , 19147 , 681515 , 281569 , 7859099 , 1085897 , 21489182 , 2429229 , 243608209 , 491563897 , 549794173 , 1212898489
n×2
1974582774
n×3
2961874161
n×4
3949165548
n×5
4936456935
n÷2
493645693.5
n÷3
329097129
n÷3
246822846.75
n÷5
197458277.4
n2
974744282844383769
n3
9.6235663497975E+26
n4
9.5012641693781E+35
n5
9.3805162800387E+44
2 √n31421.193277786
3 √n995.74572245512
4 √n177.26024167248
5 √n62.934541080083
1 , 3 , 9 , 37 , 111 , 333 , 2964839 , 8894517 , 26683551 , 109699043 , 329097129 , 987291387
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
-987291386 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 987291387 can be divided by 12 positive divisors.
The sum of these divisors (counting 987291387) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111010110110001101111011111011
3
Ternary
2112210202121011200
4
Quaternary
322312031323323
5
Quinary
4010221311022
6
Senary
241545025243
8
Octal
7266157373
10
Decimal
987291387
12
Duodecimal
236785223
16
Hexadecimal
3ad8defb
20
Vigesimal
f8ab897
36
Base36
gbt2wr
md5
5707d2fbc427b6c066feed4481bcf801
sha1
803196177694ac98ff394edd2a8923b6db400f40
sha256
6cb5f5df137e851cae75cb90cc4724db7c1633080df879f03ad06871e74b09e1
sha512
133a0ee48b9cce729ce56b082c502288543e18b46a96b7714812b903ccb14ff08ab04f9c3804d7e0734cb7845c7f19f6a6c3d45c24239ec85ff212fb231ccc02
ripemd-160
f50b1fddeca6d33ac1d59c4b62979993f88b31e5
Diameter
1974582774
Circumference
6203334736.7034
Area
3.0622494781126E+18
Volume
4.0311100461144E+27
Surface area
1.224899791245E+19
Circumference
6203334736.7034
Perimeter
3949165548
Area
974744282844383769
Diagonal
1396240869.5095
Surface area
5848465697066302614
Volume
9.6235663497975E+26
Space diagonal
1710038844.1591
Perimeter
2961874161
Area
4.2207665556844E+17
Altitude
855019422.07957
Surface area
4.2207665556844E+17
Volume
1.1341481708567E+26
Height
465413623.16985