123456721 (number)

123456721 is an odd 9-digits composite number following 123456720 and preceding 123456722. In scientific notation, it is written as 1.23456721 × 10^8. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 123430500 positive integers (up to 123456721) that are relatively prime to 123456721.

Interesting facts

Basic properties

Name

Name one hundred twenty-three million four hundred fifty-six thousand seven hundred twenty-one

Notation

Scientific notation 1.23456721 × 10^8
Engineering notation 1.23456721 × 10^6

Prime Factorization of 123456721

Prime Factorization 6151 × 20071

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 123456721
Product of the distinct prime numbers

The prime factorization of 123456721 is 6151 × 20071. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 123456721)

Multiplication

n×y
n×2 246913442
n×3 370370163
n×4 493826884
n×5 617283605

Division

n÷y
n÷2 61728360.5
n÷3 41152240.333333
n÷3 30864180.25
n÷5 24691344.2

Exponentiation

ny
n2 15241561960071841
n3 1.8816732625088E+24
n4 2.3230521098271E+32
n5 2.8679639619138E+40

Nth Root

y√n
2√n 11111.108000555
3√n 497.9337677975
4√n 105.40924058428
5√n 41.524360003951

Divisors of 123456721

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 -123456720
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 123456721 can be divided by 4 positive divisors. The sum of these divisors (counting 123456721) is 1, the average is 0.25.

Base conversion 123456721

Base System Value
2 Binary 111010110111100110011010001
3 Ternary 22121022020210011
4 Quaternary 13112330303101
5 Quinary 223101103341
6 Senary 20130034521
8 Octal 726746321
10 Decimal 123456721
12 Duodecimal 35418a41
16 Hexadecimal 75bccd1
20 Vigesimal 1ibc1g1
36 Base36 21i3td

Cryptographic Hash Functions

md5 4fe1c67f296d5b9f9f23b7e3acd76115
sha1 b6b37f96e37cb248cdf5380e255c464dfb87a4b6
sha256 dcbf43e0b87fc1ea39ddb3021a4952c78ef939bc7fa6f00b24e878fc5b4e896b
sha512 eb0c493503943c7f8955c60ee8c5111d9a584defad0dcafd5f412038d2c620e4647532b0ccbb18cc0262baf08e34c61c9b3a854cde26da79ad40e22256b80163
ripemd-160 defa5d18c07c5a7a4e67db69bc570d2e962e55f3

123456721 as geometric shapes

Circle

Radius = n
Diameter 246913442
Circumference 775701455.45977
Area 4.7882779082995E+16

Sphere

Radius = n
Volume 7.8819345306053E+24
Surface area 1.9153111633198E+17
Circumference 775701455.45977

Square

Length = n
Perimeter 493826884
Area 15241561960071841
Diagonal 174594169.20431

Cube

Length = n
Surface area 91449371760431046
Volume 1.8816732625088E+24
Space diagonal 213833313.30786

Equilateral Triangle

Length = n
Perimeter 370370163
Area 6.5997899253884E+15
Altitude 106916656.65393

Triangular Pyramid

Length = n
Surface area 6.5997899253884E+15
Volume 2.2175732064956E+23
Height 58198056.401437