Properties of the Number 61915

Sixty-One Thousand Nine Hundred Fifteen

Basics

Value: 61914 → 61915 → 61916

Parity: odd

Prime: No

Previous Prime: 61909

Next Prime: 61927

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 7 × 29 × 61

Divisors: 1, 5, 7, 29, 35, 61, 145, 203, 305, 427

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1111000111011011

Octal: 170733

Duodecimal: 2B9B7

Hexadecimal: f1db

Square: 3833467225

Square Root: 248.82724931164594

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

T(n,k) = Number of horizontal and antidiagonal neighbor colorings of the even squares of an n X k array with new integer colors introduced in row major order. A216338

Number of Dyck n-paths all of whose ascents have lengths equal to 1 (mod 5). A212385

a(n) = A007318 * [1, 6, 14, 9, 0, 0, 0, ...]. A143690

Expansion of (1-x⁵) / (1-x)⁵. A8487

Number of partitions of n² into distinct squares > 1. A298642

Numbers k such that σ(k) = φ(k+1) + φ(k) + φ(k-1). A65986

Larger members of primitive φ-amicable pairs. A121249

Number of horizontal and antidiagonal neighbor colorings of the even squares of an nX7 array with new integer colors introduced in row major order. A216337

Number of horizontal and antidiagonal neighbor colorings of the even squares of a 3Xn array with new integer colors introduced in row major order. A216339

Number of nonempty subsets of {1,2,...,n} in which exactly 1/3 of the elements are <= (n-4)/2. A48061