Properties of the Number 1864

One Thousand Eight Hundred Sixty-Four

Basics

Value: 1863 → 1864 → 1865

Parity: even

Prime: No

Previous Prime: 1861

Next Prime: 1867

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ³ × 233

Divisors: 1, 2, 4, 8, 233, 466, 932, 1864

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11101001000

Octal: 3510

Duodecimal: 10B4

Hexadecimal: 748

Square: 3474496

Square Root: 43.174066289845804

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

Number of positive subset sums of strict integer partitions of n. A284640

Number of non-isomorphic multiset partitions of weight n in which (1) all parts have the same size and (2) each vertex appears the same number of times. A319056

Expansion of 1/(1 - x*∏_k>=1 (1 + x^k)). A299106

Number of integer partitions of n whose weak run-sums cover an initial interval of nonnegative integers. A353863

Numbers k such that (k! - 2)/2 is a prime. A82671

Numbers m such that there are precisely 15 groups of order m. A294156

Number of subsets of {1...n} containing no prime indices of the elements. A324741

Number of maximal subsets of {1...n} containing no prime indices of the elements. A324743

Number of integer partitions of n > 0 where the minimum part equals the number of parts minus the number of distinct parts. A324520

Index of first occurrence of n as a term in A001203, the continued fraction for π. A32523