Properties of the Number 81457

Eighty-One Thousand Four Hundred Fifty-Seven

Basics

Value: 81456 → 81457 → 81458

Parity: odd

Prime: Yes

Previous Prime: 81439

Next Prime: 81463

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 81457

Divisors: 1, 81457

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011111000110001

Octal: 237061

Duodecimal: 3B181

Hexadecimal: 13e31

Square: 6635242849

Square Root: 285.40672732085346

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

Balanced primes of order ten. A96702

Number of planar partitions of n with exactly 2 rows. A91356

Smallest of five consecutive primes in arithmetic progression with common difference 90 and equal digit sums. A253232

Primes p from A031924 such that A052180(primepi(p)) = 29. A52236

a(n) = A081456(n)^1/2. A81457