Properties of the Number 61918

Sixty-One Thousand Nine Hundred Eighteen

Basics

Value: 61917 → 61918 → 61919

Parity: even

Prime: No

Previous Prime: 61909

Next Prime: 61927

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 83 × 373

Divisors: 1, 2, 83, 166, 373, 746, 30959, 61918

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111000111011110

Octal: 170736

Duodecimal: 2B9BA

Hexadecimal: f1de

Square: 3833838724

Square Root: 248.83327751729672

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

Terms of the sequence A145749 which are not of the form 2·p where p is prime. A244438

Numbers k such that σ(k) + φ(k) + d(k) = σ(k+1) + φ(k+1) + d(k+1), where σ(k) is the sum of the divisors of k, φ(k) the Euler totient function of k and d(k) the number of divisors of k. A259495

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 1), (1, 0, -1), (1, 0, 0), (1, 1, 1)}. A150820

A list of equal temperaments (equal divisions of the octave) whose nearest scale steps are closer and closer approximations to the pair of ratios 5/4 and 8/5 which generate two complementary tones of musical harmony, the Major 3rd (5/4) and the Minor 6th (8/5). A61918