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Properties of the Number 6138

Six Thousand One Hundred Thirty-Eight

Basics

Value: 6137 → 6138 → 6139

Parity: even

Prime: No

Previous Prime: 6133

Next Prime: 6143

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 2 × 11 × 31

Divisors: 1, 2, 3, 6, 9, 11, 18, 22, 31, 33

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1011111111010

Octal: 13772

Duodecimal: 3676

Hexadecimal: 17fa

Square: 37675044

Square Root: 78.34538914320358

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

Diagonal in array of n-gonal numbers A081422. A81437
a(1) = 1; thereafter a(n) = 6*(2n-1 - 1). A68293
T(n,k)=Number of (n+1)X(k+1) binary arrays with no 2X2 subblock diagonal sum less antidiagonal sum equal to any horizontal or vertical neighbor 2X2 subblock diagonal sum less antidiagonal sum. A186850
a(n) = (F(6·n+3) - 2)/32, where F = A000045 (the Fibonacci sequence). A49664
Numbers which are the sum of their proper divisors containing the digit 0. A59461
a(n) = 6·n2 + 12·n. A67726
Number of partitions of n such that the number of parts is divisible by the smallest part. A168657
Numbers k such that 4·k-1, 8·k-1 and 16·k-1 are all primes. A101790
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards. A205206
Second 13-gonal numbers: a(n) = n*(11·n+9)/2. A211013