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Properties of the Number 71630

Seventy-One Thousand Six Hundred Thirty

Basics

Value: 71629 → 71630 → 71631

Parity: even

Prime: No

Previous Prime: 71597

Next Prime: 71633

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 × 13 × 19 × 29

Divisors: 1, 2, 5, 10, 13, 19, 26, 29, 38, 58

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001011111001110

Octal: 213716

Duodecimal: 35552

Hexadecimal: 117ce

Square: 5130856900

Square Root: 267.6378149664206

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

Number of key permutations of length n: permutations {ai} with |ai - ai-1| = 1 or 2. A3274
T(n,k)=Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements unequal but differing by no more than k. A205341
Numbers k such that [A070080(k), A070081(k), A070082(k)] is an integer Heronian triangle having triangular area. A70148
a(n) = (n-5)*(n-6)*(n-7)*(n-16)/24. A167543
Smallest k such that the k-th tetrahedral number is divisible by exactly n tetrahedral numbers. A342808
Numbers n such that σ(n)/φ(n) = 25/4, where σ = A000203, φ = A000010. A165629
Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements unequal but differing by no more than 5. A205338
Number of length 8 nonnegative integer arrays starting and ending with 0 with adjacent elements unequal but differing by no more than n. A205345
Number of terms in the set InvPhi(8·prime(n)), where prime(n) is the n-th prime. A71630