Properties of the Number 71383

Seventy-One Thousand Three Hundred Eighty-Three

Basics

Value: 71382 → 71383 → 71384

Parity: odd

Prime: No

Previous Prime: 71363

Next Prime: 71387

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 13 × 17 ² × 19

Divisors: 1, 13, 17, 19, 221, 247, 289, 323, 3757, 4199

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001011011010111

Octal: 213327

Duodecimal: 35387

Hexadecimal: 116d7

Square: 5095532689

Square Root: 267.1759719735291

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

Nonsquarefree "year numbers" (numbers n such that φ(n) = 2*φ(σ(n)): A137815). A137816

a(n) = prime(n-2)*prime(n-1)²*prime(n). A66116

If m = p_i^e_i, n=Product p_j^f_j, set G_m(n) = Product p_j+i^f_j*e_i; extend G_m to all m by multiplicativity; sequence gives a(n)=G_n(n). A45974

Numbers n such that n⁴ is a sum of 4th powers of four nonzero integers whose sum is n. A138760

Numerator of J(n) = A000356(n)/A000309(n) (average number of 4-colorings of rank 0 in a rooted nonseparable map which is trivalent and has 2n nodes). A97872

a(n) is the smallest prime(n)-rough number k that has more divisors than k-1 and more divisors than k+1. A347719

Squared radii of the circles around (0,0) that contain record numbers of lattice points. A71383

Least positive integer y such that n = x⁴ - y³ + z² for some positive integers·and z, or 0 if no such y exists. A266152

Least nonnegative integer y such that n = x⁴ - y³ + z² for some nonnegative integers·and z, or -1 if no such y exists. A266003