Live analysis

5,991

5,991 is a composite number, odd.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).

5,991 (five thousand nine hundred ninety-one) is an odd 4-digit number. It is a composite number with 4 divisors, and factors as 3 × 1,997. Written other ways, in hexadecimal, 0x1767.

Arithmetic Number Cube-Free Deficient Number Happy Number Odious Number Recamán's Sequence Semiprime Squarefree

Interestingness

★ ★ ★ ★ ☆

6 notable facts · grade B

5,979 5,980 5,981 5,982 5,983 5,984 5,985 5,986 5,987 5,988 5,989 5,990 5,991 5,992 5,993 5,994 5,995 5,996 5,997 5,998 5,999 6,000 6,001 6,002 6,003

less more

Properties

Parity: Odd
Digit count: 4
Digit sum: 24
Digit product: 405
Digital root: 6
Palindrome: No
Bit width: 13 bits
Reversed: 1,995
Recamán's sequence: a(12,781) = 5,991
Square (n²): 35,892,081
Cube (n³): 215,029,457,271
Divisor count: 4
σ(n) — sum of divisors: 7,992
φ(n) — Euler's totient: 3,992
Sum of prime factors: 2,000

Primality

Prime factorization: 3 × 1997

Nearest primes: 5,987 (−4) · 6,007 (+16)

Divisors & multiples

All divisors (4)

1 · 3 · 1997 · 5991

Aliquot sum (sum of proper divisors): 2,001

Factor pairs (a × b = 5,991)

1 × 5991

3 × 1997

First multiples

5,991 · 11,982 (double) · 17,973 · 23,964 · 29,955 · 35,946 · 41,937 · 47,928 · 53,919 · 59,910

Sums & aliquot sequence

As consecutive integers: 2,995 + 2,996 1,996 + 1,997 + 1,998 996 + 997 + 998 + 999 + 1,000 + 1,001

Aliquot sequence: 5,991 → 2,001 → 879 → 297 → 183 → 65 → 19 → 1 → 0 — terminates at zero

Continued fraction of √n

√5,991 = [77; (2, 2, 25, 2, 2, 154)]

Period length 6 — the block in parentheses repeats forever.

Representations

In words: five thousand nine hundred ninety-one
Ordinal: 5991st
Binary: 1011101100111
Octal: 13547
Hexadecimal: 0x1767
Base64: F2c=
One's complement: 59,544 (16-bit)
Scientific notation: 5.991 × 10³
As a duration: 5,991 s = 1 hour, 39 minutes, 51 seconds

In other bases

ternary (3) 22012220

quaternary (4) 1131213

quinary (5) 142431

senary (6) 43423

septenary (7) 23316

nonary (9) 8186

undecimal (11) 4557

duodecimal (12) 3573

tridecimal (13) 295b

tetradecimal (14) 227d

pentadecimal (15) 1b96

As an angle

5,991° = 16 × 360° + 231°

231° ≈ 4.032 rad

Compass bearing: SW (southwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic: 𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian): ͵εϡϟαʹ
Mayan (base 20): 𝋮·𝋳·𝋫
Chinese: 五千九百九十一
Chinese (financial): 伍仟玖佰玖拾壹

In other modern scripts

Eastern Arabic ٥٩٩١ Devanagari ५९९१ Bengali ৫৯৯১ Tamil ௫௯௯௧ Thai ๕๙๙๑ Tibetan ༥༩༩༡ Khmer ៥៩៩១ Lao ໕໙໙໑ Burmese ၅၉၉၁

Digit at this position in famous constants

π — Pi (π): Digit 5,991 = 4
e — Euler's number (e): Digit 5,991 = 1
φ — Golden ratio (φ): Digit 5,991 = 2
√2 — Pythagoras's (√2): Digit 5,991 = 8
ln 2 — Natural log of 2: Digit 5,991 = 6
γ — Euler-Mascheroni (γ): Digit 5,991 = 5

Also seen as

Unicode codepoint

ᝧ

Tagbanwa Letter Da

U+1767

Other letter (Lo)

UTF-8 encoding: E1 9D A7 (3 bytes).

Lookup U+1767 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#001767

RGB(0, 23, 103)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.23.103.

Address: 0.0.23.103
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.23.103

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

Musical pitch

Heard as a frequency, 5,991 Hz is closest to:

Concert pitch (A4 = 440 Hz): F♯8 (5919.9 Hz, +21¢)
Scientific pitch (C4 = 256 Hz): G8 (6137.1 Hz, -42¢)
Baroque pitch (A4 = 415 Hz): G8 (5915.6 Hz, +22¢)

Position in π

The digit sequence 5991 first appears in π at position 2,217 of the decimal expansion (the 2,217ordinal-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 5991 on Pi Search ↗