Properties of the Number 87401

Eighty-Seven Thousand Four Hundred One

Basics

Value: 87400 → 87401 → 87402

Parity: odd

Prime: No

Previous Prime: 87383

Next Prime: 87403

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 71 × 1231

Divisors: 1, 71, 1231, 87401

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101010101101001

Octal: 252551

Duodecimal: 426B5

Hexadecimal: 15569

Square: 7638934801

Square Root: 295.6366012522807

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) is the least odd composite number m such that nextprime(p·m) > p·nextprime(m) where p is the n-th prime. A117103

Triangle of n·r-binomial(r+1,2). A87401

Triangle read by rows. Let k=-3, m=3. Row n is a vector v(n) defined as follows: v(n)=k*{0,v(n-2),0}+m*{-(m-1)/m,v(n-1)}+m*{v(n-1),-(m-1)/m}. A144493