Properties of the Number 71875

Seventy-One Thousand Eight Hundred Seventy-Five

Basics

Value: 71874 → 71875 → 71876

Parity: odd

Prime: No

Previous Prime: 71867

Next Prime: 71879

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 ⁵ × 23

Divisors: 1, 5, 23, 25, 115, 125, 575, 625, 2875, 3125

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001100011000011

Octal: 214303

Duodecimal: 35717

Hexadecimal: 118c3

Square: 5166015625

Square Root: 268.0951323690902

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

Hypotenuses for which there exist exactly 5 distinct Pythagorean triangles. A84649

a(n) = 2·n³ + 1. A33562

a(n) is the least odd number m minimizing A007947(m*(2ⁿ-m)). A143700

Consider a number x = concat(a,b). Sequence lists numbers·such that digits of b^a end in x. A266818

a(n) = 66·n² + 1. A158689

Number of involutions avoiding the pattern 21 (with a dot over the 1). A201689

Numbers for which the number of prime divisors counted with multiplicity and the sum of the distinct prime divisors are both perfect. A233563

Numbers k that divide the (right) concatenation of all numbers <= k written in base 5 (most significant digit on left). A29450

Decimal expansion of the eighth (of 10) decimal selvage number; the n-th digit of a decimal selvage number, x, is equal to the tenths digit of n·x. A71875

a(n) is the n-digit numerator of the fraction h/k with h and k coprime positive integers at which abs(h/k-e) is minimal. A368620