Live analysis

3,994

3,994 is a composite number, even.

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.).

3,994 (three thousand nine hundred ninety-four) is an even 4-digit number. It is a composite number with 4 divisors, and factors as 2 × 1,997. Written other ways, in Roman numerals it is MMMCMXCIV and in binary, 111110011010.

Cube-Free Deficient Number Evil Number Recamán's Sequence Semiprime Squarefree

Interestingness

★ ★ ☆ ☆ ☆

4 notable facts · grade D

3,982 3,983 3,984 3,985 3,986 3,987 3,988 3,989 3,990 3,991 3,992 3,993 3,994 3,995 3,996 3,997 3,998 3,999 4,000 4,001 4,002 4,003 4,004 4,005 4,006

less more

Properties

Parity: Even
Digit count: 4
Digit sum: 25
Digit product: 972
Digital root: 7
Palindrome: No
Bit width: 12 bits
Reversed: 4,993
Recamán's sequence: a(14,403) = 3,994
Square (n²): 15,952,036
Cube (n³): 63,712,431,784
Divisor count: 4
σ(n) — sum of divisors: 5,994
φ(n) — Euler's totient: 1,996
Sum of prime factors: 1,999

Primality

Prime factorization: 2 × 1997

Nearest primes: 3,989 (−5) · 4,001 (+7)

Divisors & multiples

All divisors (4)

1 · 2 · 1997 (half) · 3994

Aliquot sum (sum of proper divisors): 2,000

Factor pairs (a × b = 3,994)

1 × 3994

2 × 1997

First multiples

3,994 · 7,988 (double) · 11,982 · 15,976 · 19,970 · 23,964 · 27,958 · 31,952 · 35,946 · 39,940

Sums & aliquot sequence

As a sum of two squares: 5² + 63²

As consecutive integers: 997 + 998 + 999 + 1,000

Aliquot sequence: 3,994 → 2,000 → 2,836 → 2,134 → 1,394 → 874 → 566 → 286 → 218 → 112 → 136 → 134 → 70 → 74 → 40 → 50 → 43 — unresolved within range

Continued fraction of √n

√3,994 = [63; (5, 20, 1, 6, 2, 13, 1, 1, 2, 1, 2, 1, 1, 1, 1, 3, 4, 1, 1, 2, 2, 5, 3, 17, …)]

Representations

In words: three thousand nine hundred ninety-four
Ordinal: 3994th
Roman numeral: MMMCMXCIV
Binary: 111110011010
Octal: 7632
Hexadecimal: 0xF9A
Base64: D5o=
One's complement: 61,541 (16-bit)
Scientific notation: 3.994 × 10³
As a duration: 3,994 s = 1 hour, 6 minutes, 34 seconds

In other bases

ternary (3) 12110221

quaternary (4) 332122

quinary (5) 111434

senary (6) 30254

septenary (7) 14434

nonary (9) 5427

undecimal (11) 3001

duodecimal (12) 238a

tridecimal (13) 1a83

tetradecimal (14) 1654

pentadecimal (15) 12b4

As an angle

3,994° = 11 × 360° + 34°

34° ≈ 0.593 rad

Compass bearing: NE (northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian): ͵γϡϟδʹ
Mayan (base 20): 𝋩·𝋳·𝋮
Chinese: 三千九百九十四
Chinese (financial): 參仟玖佰玖拾肆

In other modern scripts

Eastern Arabic ٣٩٩٤ Devanagari ३९९४ Bengali ৩৯৯৪ Tamil ௩௯௯௪ Thai ๓๙๙๔ Tibetan ༣༩༩༤ Khmer ៣៩៩៤ Lao ໓໙໙໔ Burmese ၃၉၉၄

Digit at this position in famous constants

π — Pi (π): Digit 3,994 = 1
e — Euler's number (e): Digit 3,994 = 6
φ — Golden ratio (φ): Digit 3,994 = 9
√2 — Pythagoras's (√2): Digit 3,994 = 8
ln 2 — Natural log of 2: Digit 3,994 = 0
γ — Euler-Mascheroni (γ): Digit 3,994 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 3994, here are decompositions:

5 + 3989 = 3994
47 + 3947 = 3994
71 + 3923 = 3994
83 + 3911 = 3994
113 + 3881 = 3994
131 + 3863 = 3994
173 + 3821 = 3994
191 + 3803 = 3994

Showing the first eight; more decompositions exist.

Unicode codepoint

ྚ

Tibetan Subjoined Letter Tta

U+0F9A

Non-spacing mark (Mn)

UTF-8 encoding: E0 BE 9A (3 bytes).

Lookup U+0F9A on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000F9A

RGB(0, 15, 154)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.15.154.

Address: 0.0.15.154
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.15.154

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

Musical pitch

Heard as a frequency, 3,994 Hz is closest to:

Concert pitch (A4 = 440 Hz): B7 (3951.1 Hz, +19¢)
Scientific pitch (C4 = 256 Hz): C8 (4096 Hz, -44¢)
Baroque pitch (A4 = 415 Hz): C8 (3948.2 Hz, +20¢)

Position in π

The digit sequence 3994 first appears in π at position 4,464 of the decimal expansion (the 4,464ordinal-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 3994 on Pi Search ↗