Properties of the Number 42253

Forty-Two Thousand Two Hundred Fifty-Three

Basics

Value: 42252 → 42253 → 42254

Parity: odd

Prime: No

Previous Prime: 42239

Next Prime: 42257

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 29 × 31 × 47

Divisors: 1, 29, 31, 47, 899, 1363, 1457, 42253

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010100001101

Octal: 122415

Duodecimal: 20551

Hexadecimal: a50d

Square: 1785316009

Square Root: 205.55534534523787

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

Weak preference orderings of n alternatives, i.e., orderings that have indifference between at least two alternatives. A19472

a(n) is the smallest number such that there are exactly n numbers k (including a(n) itself) such that U(k) is isomorphic to U(a(n)) (or 0 if no such number exists). Here U(k) is the multiplicative group of integers modulo k. A303712

Numbers k such that φ(σ(φ(k))) = σ(k). A66462

Given n points in the complex plane, let M(n) the number of distinct Moebius transformations that take 3 distinct points to 3 distinct points. Note that the triples may have some or all of the points in common. A158121

Numerator in the coefficient of xⁿ in exp( ∑_m>=1 x^m/(m·2^m²) ). A174490

Expansion of g.f. A(x) satisfying A(x) = A(x³) / A(x² - x³ - x⁴). A372533

Denominators of continued fraction convergents to sqrt(652). A42253