Properties of the Number 72517

Seventy-Two Thousand Five Hundred Seventeen

Basics

Value: 72516 → 72517 → 72518

Parity: odd

Prime: No

Previous Prime: 72503

Next Prime: 72533

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 127 × 571

Divisors: 1, 127, 571, 72517

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001101101000101

Octal: 215505

Duodecimal: 35B71

Hexadecimal: 11b45

Square: 5258715289

Square Root: 269.2898067138821

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

Irregular triangle read by rows: T(n, k) is the number of chains of subspaces 0 < V₁ < ... < V_r = (F₂)ⁿ, counted up to coordinate permutation, with dimension increments given by (any fixed permutation of) the parts of the k-th partition of n in Abramowitz-Stegun order. A348113

G.f. satisfies A(x) = 1 - x·A(x)*(1 - 2·A(x)³). A364430

Composite numbers n such that the distinct digits in n and the distinct digits in the proper divisors of n are the same. A237713

Number of 5-ary rooted trees with n nodes and height at most 6. A36617

Numbers k such that the set of all the decimal digits of k is the same as the set of all the decimal digits of the proper divisors of k. A282755

Smallest triangular number beginning with the n-th triangular number other than itself. A72517