Properties of the Number 31080

Thirty-One Thousand Eighty

Basics

Value: 31079 → 31080 → 31081

Parity: even

Prime: No

Previous Prime: 31079

Next Prime: 31081

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 5 × 7 × 37

Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111100101101000

Octal: 74550

Duodecimal: 15BA0

Hexadecimal: 7968

Square: 965966400

Square Root: 176.2952069683121

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numbers n such that the multiplicative group modulo n is the direct product of 6 cyclic groups. A272596

T(n,k) is (1/n) times the n-th derivative of the difference between the k-th tetration of x (power tower of order k) and its predecessor at x=1; triangle T(n,k), n>=1, 1<=k<=n, read by rows. A295027

a(1)=1, a(2)=2, a(3)=3; for n >= 3, a(n) is smallest number such that all a(i) for 1 <= i <= n are distinct, all a(i)+a(j) for 1 <= i < j <= n are distinct and all a(i)+a(j)+a(k) for 1 <= i < j < k <= n are distinct. A36241

Table of coefficients of a polynomial sequence of binomial type related to the enumeration of minimax trees A080795. A185419

Numbers with prime factorization pqrst³. A189984

Numbers n such that {largest m such that 1, 2, ..., m divide n} is different from {largest m such that m! divides n²}. A232099

Triangle of coefficients of a sequence of binomial type polynomials. A195204

a(n) = 2·n*(n+1)*(n+2)/3. A210440

Positive integers that are square roots of products a*(a+d)*(a+2·d) with coprime a > 0, d >= 0. A284876

Expansion of e.g.f. 1 / (exp(-x²/2) - x). A375394