Properties of the Number 85140

Eighty-Five Thousand One Hundred Forty

Basics

Value: 85139 → 85140 → 85141

Parity: even

Prime: No

Previous Prime: 85133

Next Prime: 85147

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 5 × 11 × 43

Divisors: 1, 2, 3, 4, 5, 6, 9, 10, 11, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100110010010100

Octal: 246224

Duodecimal: 41330

Hexadecimal: 14c94

Square: 7248819600

Square Root: 291.78759397890786

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

a(n) = (2n+1)*(2n+2)*(2n+3). A69072

a(n) = (4·n-1)*4·n*(4·n+1). A69140

a(n) = lcm(n,n+1,n+2). A33931

a(n) = 3·n*(3·n-1)*(3·n-2). A54776

Group successively larger prime numbers so that the sum of the n-th group is a multiple of n. Sequence gives the sum for each group. A74128

Numbers whose number of divisors equals the sum of their separate prime-power decompositions. A87004

a(n) = lcm(3n+1, 3n+2, 3n+3). A61495

a(n) equals the coefficient of xⁿ in the (2·n-1)-th iteration of x+x² for n>=1. A194972

Area of the unique primitive Pythagorean triple whose inradius is the n-th odd prime and whose short leg is an even number. A380302

Smallest integer areas of integer-sided triangles such that the perimeter equals n times the smallest side. A237576