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

31387961 (number)

31387961 is an odd 8-digits composite number following 31387960 and preceding 31387962. In scientific notation, it is written as 3.1387961 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 28534500 positive integers (up to 31387961) that are relatively prime to 31387961.

Interesting facts

31387961 has 4 divisors, whose sum is 34241424
The reverse of 31387961 is 16978313
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	thirty-one million three hundred eighty-seven thousand nine hundred sixty-one

Notation

Scientific notation	3.1387961 × 10^7
Engineering notation	3.1387961 × 10^6

Prime Factorization of 31387961

Prime Factorization 11 × 2853451

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	31387961	Product of the distinct prime numbers

The prime factorization of 31387961 is 11 × 2853451. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 5, 24, 83, 822, 240, 4127, 6424, 38868, 71021, 973844, 187245, 6050622, 6003949, 3579192, 47388756, 411482539, 350964048, 1081457268, 3812487530

Basic calculations (n = 31387961)

Multiplication

n×y

n×2	62775922
n×3	94163883
n×4	125551844
n×5	156939805

Division

n÷y

n÷2	15693980.5
n÷3	10462653.666667
n÷3	7846990.25
n÷5	6277592.2

Exponentiation

n^y

n²	985204095737521
n³	3.092354773405E+22
n⁴	9.7062711025799E+29
n⁵	3.046600588232E+37

Nth Root

^y√n

²√n	5602.4959616228
³√n	315.44310194786
⁴√n	74.849822722721
⁵√n	31.575673366365

Divisors of 31387961

1, 11, 2853451, 31387961

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	-31387960	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 31387961 can be divided by 4 positive divisors. The sum of these divisors (counting 31387961) is 1, the average is 0.25.

Base conversion 31387961

Base	System	Value
2	Binary	1110111101111000100111001
3	Ternary	2012001200012002
4	Quaternary	1313233010321
5	Quinary	31013403321
6	Senary	3040430345
8	Octal	167570471
10	Decimal	31387961
12	Duodecimal	a6183b5
16	Hexadecimal	1def139
20	Vigesimal	9g39i1
36	Base36	ior3t

Cryptographic Hash Functions

md5	a5cfbd31554cb9f099cb8fc6f78a5476
sha1	b77666fa437e88ce448166bfabf866ffc2faed5d
sha256	7839a8061e0ccf6106a070c01ab44aaf9465b4818f59cc4048261538196d33d0
sha512	1fbbc6fb472cb99cc2f83b6e138f9057da56cd9694887646556ed26ea482b25c4824b220286fd3023ce55240a0b35300d0b3502f948720350eb152b9993e95f2
ripemd-160	b81c724fca16e879aa70d16cc54b31c6a57ae0e9

31387961 as geometric shapes

Circle

Radius = n

Diameter	62775922
Circumference	197216375.37753
Area	3.0951099494556E+15

Sphere

Radius = n

Volume	1.2953225384563E+23
Surface area	1.2380439797822E+16
Circumference	197216375.37753

Square

Length = n

Perimeter	125551844
Area	985204095737521
Diagonal	44389280.141438

Cube

Length = n

Surface area	5911224574425126
Volume	3.092354773405E+22
Space diagonal	54365543.19799

Equilateral Triangle

Length = n

Perimeter	94163883
Area	4.2660588741058E+14
Altitude	27182771.598995

Triangular Pyramid

Length = n

Surface area	4.2660588741058E+14
Volume	3.6443750501821E+21
Height	14796426.713813