Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

72161921 (number)

72161921 is an odd 8-digits composite number following 72161920 and preceding 72161922. In scientific notation, it is written as 7.2161921 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 66610992 positive integers (up to 72161921) that are relatively prime to 72161921.

Interesting facts

72161921 has 4 divisors, whose sum is 77712852
The reverse of 72161921 is 12916127
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	seventy-two million one hundred sixty-one thousand nine hundred twenty-one

Notation

Scientific notation	7.2161921 × 10^7
Engineering notation	7.2161921 × 10^6

Prime Factorization of 72161921

Prime Factorization 13 × 5550917

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	72161921	Product of the distinct prime numbers

The prime factorization of 72161921 is 13 × 5550917. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 3, 29, 62, 810, 297, 7152, 9680, 6881, 14963, 491610, 984584, 2234057, 5218057, 28132864, 77781411, 844898670, 16299494, 2793954453, 5082871567

Basic calculations (n = 72161921)

Multiplication

n×y

n×2	144323842
n×3	216485763
n×4	288647684
n×5	360809605

Division

n÷y

n÷2	36080960.5
n÷3	24053973.666667
n÷3	18040480.25
n÷5	14432384.2

Exponentiation

n^y

n²	5207342842410241
n³	3.7577186281392E+23
n⁴	2.7116419478401E+31
n⁵	1.9567729202032E+39

Nth Root

^y√n

²√n	8494.8173023321
³√n	416.32839153995
⁴√n	92.167333162743
⁵√n	37.2959451249

Divisors of 72161921

1, 13, 5550917, 72161921

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	-72161920	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 72161921 can be divided by 4 positive divisors. The sum of these divisors (counting 72161921) is 1, the average is 0.25.

Base conversion 72161921

Base	System	Value
2	Binary	100010011010001101010000001
3	Ternary	12000210012112202
4	Quaternary	10103101222001
5	Quinary	121433140141
6	Senary	11054402545
8	Octal	423215201
10	Decimal	72161921
12	Duodecimal	20200455
16	Hexadecimal	44d1a81
20	Vigesimal	12b04g1
36	Base36	16yoht

Cryptographic Hash Functions

md5	4ad0f66fe2fef0e7695695bfc66ccf20
sha1	37b13b3c49fb86d937dd7fdc5b7e211ff88f6562
sha256	b52b45f9370e0b9107658f408bef7a4faea1e8f990e038db3f4a23d10854f3db
sha512	d3733852e0968cd267218adb29e2658c4e3b6f41d71182e7417f16c334af6e05f6d6aa5a64e7ede0b2bc836a83f8de5c6003d833184111bf4a1caf5203e4f562
ripemd-160	1aeac464308c1c2b2cf37e880ba8fd03be166e37

72161921 as geometric shapes

Circle

Radius = n

Diameter	144323842
Circumference	453406721.76505
Area	1.6359350018439E+16

Sphere

Radius = n

Volume	1.5740294981893E+24
Surface area	6.5437400073758E+16
Circumference	453406721.76505

Square

Length = n

Perimeter	288647684
Area	5207342842410241
Diagonal	102052367.3651

Cube

Length = n

Surface area	31244057054461446
Volume	3.7577186281392E+23
Space diagonal	124988113.54377

Equilateral Triangle

Length = n

Perimeter	216485763
Area	2.2548455938712E+15
Altitude	62494056.771886

Triangular Pyramid

Length = n

Surface area	2.2548455938712E+15
Volume	4.4285138729138E+22
Height	34017455.788365