Properties of the Number 40127

Forty Thousand One Hundred Twenty-Seven

Basics

Value: 40126 → 40127 → 40128

Parity: odd

Prime: Yes

Previous Prime: 40123

Next Prime: 40129

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 40127

Divisors: 1, 40127

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001110010111111

Octal: 116277

Duodecimal: 1B27B

Hexadecimal: 9cbf

Square: 1610176129

Square Root: 200.31724838365767

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

Class 7- primes. A81426

a(n) is smallest safe prime (A005385) such that a(n) + 12·n is the next safe prime, i.e., x = (a(n) - 1)/2 and x + 6·n are closest Sophie Germain primes. A59327

Least integer k > 0 such that prime(k) - k·n is a square. A247893

Lesser of twin primes p such that p and p+2 are both in A115591. A367318

Initial members of prime quadruples (n, n+2, n+24, n+26). A245568

Inert rational primes in the intersection of all Q(sqrt(-d)) where d is a Heegner number. A309024

Primes p such that p+2, (p+1)||p and (p+1)||(p+2) are primes (where || denotes concatenation in base 10). A309934

Primes p such that p and p+2 are twin primes and also the strings 987654321p and 987654321p+2 are twin primes. A103818

Primes p such that x⁴ = 13 has no solution mod p. A40127

Compound prime numbers. A prime is compound if its decimal digits can be divided into two contiguous subsets with equal sum. A118592