Properties of the Number 2951

Two Thousand Nine Hundred Fifty-One

Basics

Value: 2950 → 2951 → 2952

Parity: odd

Prime: No

Previous Prime: 2939

Next Prime: 2953

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 13 × 227

Divisors: 1, 13, 227, 2951

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101110000111

Octal: 5607

Duodecimal: 185B

Hexadecimal: b87

Square: 8708401

Square Root: 54.323107422164284

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

Numbers k such that 10·R_k + 3 is prime, where R_k is the repunit (A002275) of length k. A56654

a(n) is the smallest m > 1 such that m divides ∑_k=1..m prime(k)ⁿ. A85450

11-gonal (or hendecagonal) numbers: a(n) = n*(9·n-7)/2. A51682

a(n) = C(n,1) + C(n,2) + C(n,3), or n*(n² + 5)/6. A4006

Least inverse of A015910: smallest integer k > 0 such that 2^k mod k = n, or 0 if no such k exists. A36236

Goodstein sequence starting with 4: to calculate a(n+1), write a(n) in the hereditary representation in base n+2, then bump the base to n+3, then subtract 1. A56193

Expansion of e.g.f. exp(sin(x)). A2017

Indices of primes at which the prime race 4k-1 vs. 4k+1 is tied. A38691

Numbers m such that m and m+1 are consecutive lazy-Fibonacci-Niven numbers (A328212). A328213

a(n) = floor(n*φ¹⁰), where φ is the golden ratio, A001622. A4925