Properties of the Number 38989

Thirty-Eight Thousand Nine Hundred Eighty-Nine

Basics

Value: 38988 → 38989 → 38990

Parity: odd

Prime: No

Previous Prime: 38977

Next Prime: 38993

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 127 × 307

Divisors: 1, 127, 307, 38989

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001100001001101

Octal: 114115

Duodecimal: 1A691

Hexadecimal: 984d

Square: 1520142121

Square Root: 197.4563242846377

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

Positive solutions·to the equation x² + (x+71)² = y². A118673

Number of ordered triples (w,x,y) with all terms in {1,...,n} and w³ < x³ + y³. A211650

Number of (w,x,y) with all terms in {0,...,n} and max(w,x,y) >= 2·min(w,x,y). A213390

Strong pseudoprimes to base 20. A20246

a(1)=1, a(2)=3, a(3)=8; for n>=4, a(n) = 10·a(n-3) + 8 (if a(n-3) is odd) or + 9 (if a(n-3) is even). A117713

a(n) = prime(n)_prime(n). A122622

Least integer having a larger digital sum than the previous term and such that 10^n-1 + a(n) is a prime. A199190

Numbers n such that the n-th digit (after the decimal point) in the decimal expansion of π are the occurrence of the least significant digit represented by the more significant digits. A201545

a(n) is the least number k whose sum of digits in base 10 is n and that is palindromic in base n, or -1 if no such number exists. A375387

Nearest integer to the space diagonal of the smallest (measured by the longest edge) primitive (gcd(a,b,c)=1) Euler bricks (a, b, c, sqrt(a² + b²), sqrt(b² + c²), sqrt(a² + c²) are integers). If the space diagonal is an integer then the Euler brick is called a "perfect cuboid". There are no known perfect cuboids. A141029