Properties of the Number 71995

Seventy-One Thousand Nine Hundred Ninety-Five

Basics

Value: 71994 → 71995 → 71996

Parity: odd

Prime: No

Previous Prime: 71993

Next Prime: 71999

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 5 × 7 × 11 ² × 17

Divisors: 1, 5, 7, 11, 17, 35, 55, 77, 85, 119

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: Yes

Tetrahedral: No

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Representations

Binary: 10001100100111011

Octal: 214473

Duodecimal: 357B7

Hexadecimal: 1193b

Square: 5183280025

Square Root: 268.3188401883103

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

Fifth column (m=4) of (1,3)-Pascal triangle A095660. A95661

Numbers k such that d(k) > d(k+1) > d(k+2) > d(k+3) > d(k+4), where d(n) is the number of divisors of n. A364720

Occurrences of decrease of the probability density P(n) of coprime numbers k,m, satisfying 1 <= k <= a(n) and 1 <= m <= a(n), and a(n) congruent to 1 (mod 2) and a(n) not congruent to 3 (mod 6). A280879

a(n) = ∏_{d∣n, d>1} prime(1+(d mod 8)). A320108

Number of ordered multigraphs on n labeled edges (without loops). A20558

Numerators of continued fraction convergents to sqrt(799). A42540

Sum of numbers under a triangle on a spiral staircase of width 10. A111080

Heptagonal numbers with only odd digits. A117993

Number of chiral pairs of colorings of the edges of a regular tetrahedron using n or fewer colors. A337899

Expansion of 1/((1-x)(1-3x)(1-9x)(1-11x)). A21694