Properties of the Number 12136

Twelve Thousand One Hundred Thirty-Six

Basics

Value: 12135 → 12136 → 12137

Parity: even

Prime: No

Previous Prime: 12119

Next Prime: 12143

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 37 × 41

Divisors: 1, 2, 4, 8, 37, 41, 74, 82, 148, 164

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111101101000

Octal: 27550

Duodecimal: 7034

Hexadecimal: 2f68

Square: 147282496

Square Root: 110.16351483136329

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

Partitioning integers to avoid arithmetic progressions of length 3. A6999

Numbers k such that 2^k + 31 is prime. A247952

a(1) = 932; for n > 1, a(n) = a(n-1) + 1 + sum of distinct prime factors of a(n-1) that are < a(n-1). A105213

Number of conjugacy classes of subgroups of the alternating group A_n. A29726

Number of nonisomorphic cyclic subgroups of the group S_n X S_n (where S_n is the symmetric group of degree n). A63183

Expansion of e.g.f. 1/(1 - log(1 - log(1-x))). A217033

Triangle T(n,k), 0<=k<=n, read by rows; given by [0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, ...] δ [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, ...] where δ is the operator defined in A084938. A94456

Sophie Germain 5-almost primes. A211162

Expansion of q^-1/3 * (η(q) * η(q⁹))² / η(q³)⁴ in powers of q. A192329

Numbers k such that k² reversed is a prime and k²+(k² reversed) is a prime. A306301