Properties of the Number 40123

Forty Thousand One Hundred Twenty-Three

Basics

Value: 40122 → 40123 → 40124

Parity: odd

Prime: Yes

Previous Prime: 40111

Next Prime: 40127

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 40123

Divisors: 1, 40123

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001110010111011

Octal: 116273

Duodecimal: 1B277

Hexadecimal: 9cbb

Square: 1609855129

Square Root: 200.30726397212857

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

Least positive integer m with π(m·n) = φ(m), where π(.) is the prime-counting function and φ(.) is Euler's totient function. A247601

Numbers k such that prime(k) == 13 (mod k). A116658

Primes whose digits can be arranged in increasing cyclic order - to form a substring of 123456789012345678901234567890... A68710

Five-digit primes which use each of the decimal digits 0 through 4 exactly once. A109176

Primes formed by rearranging five consecutive decimal digits (avoiding leading 0). A156119

Primes whose digits can be arranged as consecutive digits (more precisely, to form a substring of 0123456789). A177119

Primes whose digits are a permutation of (0, ..., m) for some m. A187796

Numbers k such that prime(k) == 1 (mod σ(k)). A67697

Polynomial (1/3)*n³ + (9/2)*n² + (85/6)*n - 2. A73775

Primes p such that the concatenation of p³, p², p and 1 is prime. A323428