Properties of the Number 71500

Seventy-One Thousand Five Hundred

Basics

Value: 71499 → 71500 → 71501

Parity: even

Prime: No

Previous Prime: 71483

Next Prime: 71503

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 ³ × 11 × 13

Divisors: 1, 2, 4, 5, 10, 11, 13, 20, 22, 25

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001011101001100

Octal: 213514

Duodecimal: 35464

Hexadecimal: 1174c

Square: 5112250000

Square Root: 267.39483914241873

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

a(n) is the number of nonnegative integers k less than 10ⁿ such that the decimal representation of k lacks at least one of digits 1,2, at least one of digits 3,4 and at least one of digits 5,6,7,8,9. A125945

a(n) = n*(n+1)*(7·n+2)/6. A255211

G.f.: 1/((1-x)*(1-x²))⁵. A38165

Expansion of (-1 + 1/(1-10·x)¹⁰)/(100·x); related to A053109. A53113

Expansion of 1/((1-x)*(1-x²))⁴. A38164

Positive integers which can be written in two bases smaller than 10 as mutually-reversed strings of digit(s). A336733

Number of multisets of exactly three partitions of positive integers into distinct parts with total sum of parts equal to n. A320788

Irregular triangle where the n-th row list the positive integers which can be written in two bases smaller than n as mutually-reversed strings of digit(s), for n>=4. A336768

Expansion of (1+10·x+5·x²)/(1-x)¹⁰. A59601

a(n) = C(n+3,3)*n³/4. A85284