216906991 (number)

216906991 is an odd 9-digits composite number following 216906990 and preceding 216906992. In scientific notation, it is written as 2.16906991 × 10^8. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 185256960 positive integers (up to 216906991) that are relatively prime to 216906991.

Interesting facts

Basic properties

Name

Name two hundred sixteen million nine hundred six thousand nine hundred ninety-one

Notation

Scientific notation 2.16906991 × 10^8
Engineering notation 2.16906991 × 10^6

Prime Factorization of 216906991

Prime Factorization 7 × 281 × 110273

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 216906991
Product of the distinct prime numbers

The prime factorization of 216906991 is 7 × 281 × 110273. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 7, 12, 86, 614, 477, 6776, 9120, 26052, 2450, 218521, 635100, 9861757, 4326025, 96907165, 73629194, 165470987, 920623102, 7066558526, 5073758002

Basic calculations (n = 216906991)

Multiplication

n×y
n×2 433813982
n×3 650720973
n×4 867627964
n×5 1084534955

Division

n÷y
n÷2 108453495.5
n÷3 72302330.333333
n÷3 54226747.75
n÷5 43381398.2

Exponentiation

ny
n2 47048642744674081
n3 1.0205179528381E+25
n4 2.213574784116E+33
n5 4.8013984577607E+41

Nth Root

y√n
2√n 14727.762593144
3√n 600.83863375772
4√n 121.35799352801
5√n 46.478778930686

Divisors of 216906991

1, 7, 281, 1967, 110273, 771911, 30986713, 216906991

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -216906990
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 216906991 can be divided by 8 positive divisors. The sum of these divisors (counting 216906991) is 1, the average is 0.125.

Base conversion 216906991

Base System Value
2 Binary 1100111011011011110011101111
3 Ternary 120010011000110021
4 Quaternary 30323123303233
5 Quinary 421012010431
6 Senary 33305023011
8 Octal 1473336357
10 Decimal 216906991
12 Duodecimal 60784a67
16 Hexadecimal cedbcef
20 Vigesimal 37fd79b
36 Base36 3l52i7

Cryptographic Hash Functions

md5 e6714b2d95184f5845209c713bc2f730
sha1 7530073a74672ac97a4824e964acafca27ad91c2
sha256 583e3e0003432942e328955f3baa6bedc15a2a9daccc9819800049ffcd1ee2c7
sha512 827f9e0a061818367a24116179ce28bb773e8cc387c50c37fe7597e03acade36a2d10436830142ee36aeb9f923e4f70a94a26ce616f4fced9ae5bc8e40e422d1
ripemd-160 e0c4d4621172f06d9b8cd2148005501849e196ba

216906991 as geometric shapes

Circle

Radius = n
Diameter 433813982
Circumference 1362866818.8757
Area 1.4780767040804E+17

Sphere

Radius = n
Volume 4.274735604657E+25
Surface area 5.9123068163216E+17
Circumference 1362866818.8757

Square

Length = n
Perimeter 867627964
Area 47048642744674081
Diagonal 306752808.44574

Cube

Length = n
Surface area 282291856468044486
Volume 1.0205179528381E+25
Space diagonal 375693928.92889

Equilateral Triangle

Length = n
Perimeter 650720973
Area 2.0372659915233E+16
Altitude 187846964.46444

Triangular Pyramid

Length = n
Surface area 2.0372659915233E+16
Volume 1.2026919412908E+24
Height 102250936.14858