Properties of the Number -623645

Six Hundred Twenty-Three Thousand Six Hundred Forty-Five

Basics

Value: -623646 → -623645 → -623644

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 5 × 11 × 17 × 23 × 29

Divisors: 1, 5, 11, 17, 23, 29, 55, 85, 115, 145

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011000010000011101

Octal: -2302035

Duodecimal: -260AA5

Hexadecimal: -9841d

Square: 388933086025

Square Root: 789.7119728103405

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

Sextuple factorials, 6-factorials, n!!!!!!, n!6. A85158

Sextuple factorial numbers: ∏_k=0..n-1 (6·k + 5). A8543

Triangle read by rows, the inverse Bell transform of n!*binomial(5,n) (without column 0). A13988

A partition product of Stirling₂ type [parameter k = 5] with biggest-part statistic (triangle read by rows). A157405

Lower triangular array called S2hat(-5) related to partition number array A144341. A144342

Partition number array, called M32(-5), related to A013988(n,m)= |S2(-5;n,m)| ( generalized Stirling triangle). A144268

Squarefree products of k primes that are symmetrically distributed around their average. Case k = 5. A294752

Product of first n primes of form 6k-1. A57130

Expansion of (1-x)^-1/(1 - 2·x - x² - x³). A77849

Partition number array, called M32hat(-5)= 'M32(-5)/M3'= 'A144268/A036040', related to A011801(n,m)= |S2(-4;n,m)| (generalized Stirling triangle). A144341