Properties of the Number 97920

Ninety-Seven Thousand Nine Hundred Twenty

Basics

Value: 97919 → 97920 → 97921

Parity: even

Prime: No

Previous Prime: 97919

Next Prime: 97927

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 ⁷ × 3 ² × 5 × 17

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10111111010000000

Octal: 277200

Duodecimal: 48800

Hexadecimal: 17e80

Square: 9588326400

Square Root: 312.9217154497271

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

Trajectory of 22 under the Reverse and Add! operation carried out in base 2. A61561

Number of polygons formed when every pair of vertices of a regular n-gon are joined by an infinite line. A344857

Reverse and add (in binary) - written in base 10. A35522

Number of primitive (period n) periodic palindromes using a maximum of two different symbols. A56493

a(n) = 2*(n+1)*binomial(n+3,4). A27789

Number of 2n-bead balanced binary strings of fundamental period 2n, rotationally equivalent to reverse, complement and reversed complement. A45665

Expansion of e.g.f. (1/x) * Series_Reversion( x + (1 - exp(x⁴))/x² ). A392790

A Galton triangle: T(n,k) = 2·k*T(n-1,k) + (2·k-1)*T(n-1,k-1). A187075

a(n) = 3·2^n-1*(2ⁿ-1). A103897

a(n) = 2·a(n-1) + 2·a(n-2) - 4·a(n-3) with n>2, a(0)=0, a(1)=1, a(2)=3. A135094