Properties of the Number 70807

Seventy Thousand Eight Hundred Seven

Basics

Value: 70806 → 70807 → 70808

Parity: odd

Prime: No

Previous Prime: 70793

Next Prime: 70823

Digit Sum: 22

Digital Root: 4

Palindrome: Yes

Factorization: 11 × 41 × 157

Divisors: 1, 11, 41, 157, 451, 1727, 6437, 70807

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001010010010111

Octal: 212227

Duodecimal: 34B87

Hexadecimal: 11497

Square: 5013631249

Square Root: 266.09584739337816

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

Base-10 palindromes that start with 7. A43042

Palindromic composite numbers starting with a digit 7. A222728

A symmetric triangle, with sum the large Schröder numbers. A175124

Numbers k for which φ(A267099(k)) is equal to φ(k), but the number of 4m+1 and 4m+3 primes in the prime factorization of k (when counted with multiplicity) is not equal. Here A267099 is fully multiplicative involution swapping the positions of 4m+1 and 4m+3 primes, and φ is Euler totient function. A354194

Palindromes that are multiples of 11 and whose digit sum is also a multiple of 11. A346221

Composite numbers n such that Cototient(totient(n))=A070556(n) is power of 2. A70807

Integers k such that 2^k-1 == 1 (mod k) and 2^m-1 == 1 (mod m), where m = k*(A000265(k-1) - 1) + 1 and A000265 gives the odd part of its argument. A187849