Properties of the Number 74691

Seventy-Four Thousand Six Hundred Ninety-One

Basics

Value: 74690 → 74691 → 74692

Parity: odd

Prime: No

Previous Prime: 74687

Next Prime: 74699

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 43 × 193

Divisors: 1, 3, 9, 43, 129, 193, 387, 579, 1737, 8299

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010001111000011

Octal: 221703

Duodecimal: 37283

Hexadecimal: 123c3

Square: 5578745481

Square Root: 273.2965422393778

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

Triangular numbers whose sum of aliquot divisors is a prime number. A83676

Triangular numbers equal to the sum of a prime number with its index. A115886

Triangular numbers for which the sum of the digits equals the sum of the digits of the next triangular number. A117511

Triangular numbers for which the sum of the digits is a cube. A117803

Triangular numbers n with digits d₁, d₂, ..., d_k such that d₁*(d₁+1)/2 + ... + d_k*(d_k+1)/2 is a triangular number. A254957

Squarefree Fibonacci numbers with odd number of prime factors. A74691

Divisors of 7²⁴ - 1. A245030