121665720 (number)

121665720 is an even 9-digits composite number following 121665719 and preceding 121665721. In scientific notation, it is written as 1.21665720 × 10^8. The sum of its digits is 30. It has a total of 7 prime factors and 64 positive divisors. There are 28992000 positive integers (up to 121665720) that are relatively prime to 121665720.

Interesting facts

Basic properties

Name

Name one hundred twenty-one million six hundred sixty-five thousand seven hundred twenty

Notation

Scientific notation 1.21665720 × 10^8
Engineering notation 1.21665720 × 10^6

Prime Factorization of 121665720

Prime Factorization 2 × 2 × 2 × 15 × 11 × 61 × 1511

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 30416430
Product of the distinct prime numbers

The prime factorization of 121665720 is 2 × 2 × 2 × 15 × 11 × 61 × 1511. Since it has a total of 7 prime factors.

Most popular turbo-numbers

2, 4, 81, 13, 913, 228, 8267, 3011, 60420, 28137, 961846, 492315, 4232846, 2994298, 17393451, 25433257, 783825835, 958755931, 3684883180, 312552982

Basic calculations (n = 121665720)

Multiplication

n×y
n×2 243331440
n×3 364997160
n×4 486662880
n×5 608328600

Division

n÷y
n÷2 60832860
n÷3 40555240
n÷3 30416430
n÷5 24333144

Exponentiation

ny
n2 14802547423118400
n3 1.8009625900678E+24
n4 2.1911541021367E+32
n5 2.6658834146741E+40

Nth Root

y√n
2√n 11030.21849285
3√n 495.51416831754
4√n 105.02484702607
5√n 41.403174987304

Divisors of 121665720

1, 2, 4, 8, 11, 15, 22, 30, 44, 60, 61, 88, 120, 122, 165, 244, 330, 488, 660, 671, 915, 1320, 1342, 1511, 1830, 2684, 3022, 3660, 5368, 6044, 7320, 10065, 12088, 16621, 20130, 22665, 33242, 40260, 45330, 66484, 80520, 90660, 92171, 132968, 181320, 184342, 249315, 368684, 498630, 737368, 997260, 1013881, 1382565, 1994520, 2027762, 2765130, 4055524, 5530260, 8111048, 11060520, 15208215, 30416430, 60832860, 121665720

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -121665719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 121665720 can be divided by 64 positive divisors. The sum of these divisors (counting 121665720) is 1, the average is 0.015625.

Base conversion 121665720

Base System Value
2 Binary 111010000000111100010111000
3 Ternary 22110221020222210
4 Quaternary 13100013202320
5 Quinary 222121300340
6 Senary 20023415120
8 Octal 720074270
10 Decimal 121665720
12 Duodecimal 348b44a0
16 Hexadecimal 74078b8
20 Vigesimal 1i08460
36 Base36 20fpvc

Cryptographic Hash Functions

md5 cb0f7d90745b1456a7b552612714e02c
sha1 2a868aa2afc518697ee65c65668dc2e546c01e3a
sha256 f55bd854fdd27a4c550c9d4148e1ec38135efee371780de40ca99045572caebb
sha512 e29e8e2296f459d2a26761864f47123cc17d415cad554fb77e5f7d16a9613ba0f8e60389c3e9263bd2e80024999315c9f3f9d78db61c7e0e00226dc231bfafd3
ripemd-160 47cf2a197210fa8b98b1e167d104bb8ef13a953e

121665720 as geometric shapes

Circle

Radius = n
Diameter 243331440
Circumference 764448264.29143
Area 4.6503574238883E+16

Sphere

Radius = n
Volume 7.5438544564629E+24
Surface area 1.8601429695553E+17
Circumference 764448264.29143

Square

Length = n
Perimeter 486662880
Area 14802547423118400
Diagonal 172061311.29989

Cube

Length = n
Surface area 88815284538710400
Volume 1.8009625900678E+24
Space diagonal 210731208.57945

Equilateral Triangle

Length = n
Perimeter 364997160
Area 6.4096910545722E+15
Altitude 105365604.28972

Triangular Pyramid

Length = n
Surface area 6.4096910545722E+15
Volume 2.1224547668338E+23
Height 57353770.433296