Number

5,881

5,881 is a prime, odd.

5,881 (five thousand eight hundred eighty-one) is an odd 4-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x16F9.

Arithmetic Number Cube-Free Deficient Number Odious Number Prime Pythagorean Prime Recamán's Sequence Squarefree Twin Prime

Interestingness

★ ★ ★ ★ ☆

7 notable facts · grade B

5,869 5,870 5,871 5,872 5,873 5,874 5,875 5,876 5,877 5,878 5,879 5,880 5,881 5,882 5,883 5,884 5,885 5,886 5,887 5,888 5,889 5,890 5,891 5,892 5,893

less more

Properties

Parity: Odd
Digit count: 4
Digit sum: 22
Digit product: 320
Digital root: 4
Palindrome: No
Bit width: 13 bits
Reversed: 1,885
Recamán's sequence: a(13,001) = 5,881
Square (n²): 34,586,161
Cube (n³): 203,401,212,841
Divisor count: 2
σ(n) — sum of divisors: 5,882
φ(n) — Euler's totient: 5,880

Primality

5,881 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 5881

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 5,881)

1 × 5881

First multiples

5,881 · 11,762 (double) · 17,643 · 23,524 · 29,405 · 35,286 · 41,167 · 47,048 · 52,929 · 58,810

Sums & aliquot sequence

As a sum of two squares: 16² + 75²

As consecutive integers: 2,940 + 2,941

Continued fraction of √n

√5,881 = [76; (1, 2, 4, 1, 21, 10, 5, 1, 1, 2, 1, 1, 2, 2, 2, 1, 5, 2, 2, 1, 18, 2, 5, 1, …)]

Representations

In words: five thousand eight hundred eighty-one
Ordinal: 5881st
Binary: 1011011111001
Octal: 13371
Hexadecimal: 0x16F9
Base64: Fvk=
One's complement: 59,654 (16-bit)
Scientific notation: 5.881 × 10³
As a duration: 5,881 s = 1 hour, 38 minutes, 1 second

In other bases

ternary (3) 22001211

quaternary (4) 1123321

quinary (5) 142011

senary (6) 43121

septenary (7) 23101

nonary (9) 8054

undecimal (11) 4467

duodecimal (12) 34a1

tridecimal (13) 28a5

tetradecimal (14) 2201

pentadecimal (15) 1b21

As an angle

5,881° = 16 × 360° + 121°

121° ≈ 2.112 rad

Compass bearing: ESE (east-southeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
Egyptian hieroglyphic: 𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian): ͵εωπαʹ
Mayan (base 20): 𝋮·𝋮·𝋡
Chinese: 五千八百八十一
Chinese (financial): 伍仟捌佰捌拾壹

In other modern scripts

Eastern Arabic ٥٨٨١ Devanagari ५८८१ Bengali ৫৮৮১ Tamil ௫௮௮௧ Thai ๕๘๘๑ Tibetan ༥༨༨༡ Khmer ៥៨៨១ Lao ໕໘໘໑ Burmese ၅၈၈၁

Digit at this position in famous constants

π — Pi (π): Digit 5,881 = 4
e — Euler's number (e): Digit 5,881 = 4
φ — Golden ratio (φ): Digit 5,881 = 1
√2 — Pythagoras's (√2): Digit 5,881 = 4
ln 2 — Natural log of 2: Digit 5,881 = 0
γ — Euler-Mascheroni (γ): Digit 5,881 = 2

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 5,879 (gap of 2)
Next prime: 5,897 (gap of 16)

Pair status: twin with 5879.

Hex color

#0016F9

RGB(0, 22, 249)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.22.249.

Address: 0.0.22.249
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.22.249

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Musical pitch

Heard as a frequency, 5,881 Hz is closest to:

Concert pitch (A4 = 440 Hz): F♯8 (5919.9 Hz, -11¢)
Scientific pitch (C4 = 256 Hz): F♯8 (5792.6 Hz, +26¢)
Baroque pitch (A4 = 415 Hz): G8 (5915.6 Hz, -10¢)

Position in π

The digit sequence 5881 first appears in π at position 316 of the decimal expansion (the 316ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

Look up 5881 on Pi Search ↗