Properties of the Number 75855

Seventy-Five Thousand Eight Hundred Fifty-Five

Basics

Value: 75854 → 75855 → 75856

Parity: odd

Prime: No

Previous Prime: 75853

Next Prime: 75869

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 13 × 389

Divisors: 1, 3, 5, 13, 15, 39, 65, 195, 389, 1167

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10010100001001111

Octal: 224117

Duodecimal: 37A93

Hexadecimal: 1284f

Square: 5753981025

Square Root: 275.41786434434493

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) = 9ⁿ + 7ⁿ - 1. A155656

Odd triangular numbers with prime indices. A34954

Triangular numbers composed of digits {5,7,8}. A119224

Triangular numbers p*(p+1)/2 with p prime such that 1+(number of prime factors of p+1) is prime. A144549

a(n) = 1·3*5 + 3·5*7 + 5·7*9 + ... (n terms). A196506

Number of unordered pairs of distinct strict integer partitions of n. A366132

Hexagonal numbers that are products of exactly four distinct primes. A381920

Maximum number of black squares on an n X n chessboard (with a black square in at least one corner) that can be covered by a single path, traveling only to adjacent black squares. A75855