Properties of the Number 85220

Eighty-Five Thousand Two Hundred Twenty

Basics

Value: 85219 → 85220 → 85221

Parity: even

Prime: No

Previous Prime: 85213

Next Prime: 85223

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 4261

Divisors: 1, 2, 4, 5, 10, 20, 4261, 8522, 17044, 21305

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100110011100100

Octal: 246344

Duodecimal: 41398

Hexadecimal: 14ce4

Square: 7262448400

Square Root: 291.92464781172555

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 that are the sum of 5 nonzero 8th powers. A3383

Row sums of the absolute values of a triangular array related to the Bernoulli numbers. A162509

Triangle of numbers {a(n,k), n >= 0, 0 <= k <= n} defined by a(0,0)=1, a(n,0)=A000670(n), a(n,n)=A000629(n), a(n,k) = a(n,k-1) + a(n-1,k-1); a(n+1,0) = ∑_k=0..n a(n,k). A73146

Sum of the largest parts in the partitions of 4n into 4 parts with smallest part = 1. A240711

Transpose of A085219. A85220