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3,979

3,979 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.).

3,979 (three thousand nine hundred seventy-nine) is an odd 4-digit number. It is a composite number with 4 divisors, and factors as 23 × 173. Written other ways, in Roman numerals it is MMMCMLXXIX and in binary, 111110001011.

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

Interestingness

Properties

Parity
Odd
Digit count
4
Digit sum
28
Digit product
1,701
Digital root
1
Palindrome
No
Bit width
12 bits
Reversed
9,793
Recamán's sequence
a(14,433) = 3,979
Square (n²)
15,832,441
Cube (n³)
62,997,282,739
Divisor count
4
σ(n) — sum of divisors
4,176
φ(n) — Euler's totient
3,784
Sum of prime factors
196

Primality

Prime factorization: 23 × 173

Nearest primes: 3,967 (−12) · 3,989 (+10)

Divisors & multiples

All divisors (4)
1 · 23 · 173 · 3979
Aliquot sum (sum of proper divisors): 197
Factor pairs (a × b = 3,979)
1 × 3979
23 × 173
First multiples
3,979 · 7,958 (double) · 11,937 · 15,916 · 19,895 · 23,874 · 27,853 · 31,832 · 35,811 · 39,790

Sums & aliquot sequence

As consecutive integers: 1,989 + 1,990 162 + 163 + … + 184 64 + 65 + … + 109
Aliquot sequence: 3,979 197 1 0 — terminates at zero

Continued fraction of √n

√3,979 = [63; (12, 1, 1, 1, 1, 4, 2, 3, 1, 8, 1, 13, 8, 2, 1, 20, 2, 1, 7, 1, 2, 1, 4, 1, …)]

Period length 46 — the block in parentheses repeats forever.

Representations

In words
three thousand nine hundred seventy-nine
Ordinal
3979th
Roman numeral
MMMCMLXXIX
Binary
111110001011
Octal
7613
Hexadecimal
0xF8B
Base64
D4s=
One's complement
61,556 (16-bit)
Scientific notation
3.979 × 10³
As a duration
3,979 s = 1 hour, 6 minutes, 19 seconds
In other bases
ternary (3) 12110101
quaternary (4) 332023
quinary (5) 111404
senary (6) 30231
septenary (7) 14413
nonary (9) 5411
undecimal (11) 2a98
duodecimal (12) 2377
tridecimal (13) 1a71
tetradecimal (14) 1643
pentadecimal (15) 12a4

As an angle

3,979° = 11 × 360° + 19°
19° ≈ 0.332 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵γϡοθʹ
Mayan (base 20)
𝋩·𝋲·𝋳
Chinese
三千九百七十九
Chinese (financial)
參仟玖佰柒拾玖
In other modern scripts
Eastern Arabic ٣٩٧٩ Devanagari ३९७९ Bengali ৩৯৭৯ Tamil ௩௯௭௯ Thai ๓๙๗๙ Tibetan ༣༩༧༩ Khmer ៣៩៧៩ Lao ໓໙໗໙ Burmese ၃၉၇၉

Digit at this position in famous constants

π — Pi (π)
Digit 3,979 = 1
e — Euler's number (e)
Digit 3,979 = 9
φ — Golden ratio (φ)
Digit 3,979 = 3
√2 — Pythagoras's (√2)
Digit 3,979 = 0
ln 2 — Natural log of 2
Digit 3,979 = 6
γ — Euler-Mascheroni (γ)
Digit 3,979 = 4

Also seen as

Unicode codepoint
Tibetan Sign Gru Med Rgyings
U+0F8B
Other letter (Lo)

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

Hex color
#000F8B
RGB(0, 15, 139)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.15.139.

Address
0.0.15.139
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.15.139

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

Musical pitch

Heard as a frequency, 3,979 Hz is closest to:

  • Concert pitch (A4 = 440 Hz): B7 (3951.1 Hz, +12¢)
  • Scientific pitch (C4 = 256 Hz): B7 (3866.1 Hz, +50¢ — about midway to C8)
  • Baroque pitch (A4 = 415 Hz): C8 (3948.2 Hz, +13¢)
Position in π

The digit sequence 3979 first appears in π at position 5,263 of the decimal expansion (the 5,263ordinal-suffix:rd 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.

Related reading