Live analysis

4,989

4,989 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.).

4,989 (four thousand nine hundred eighty-nine) is an odd 4-digit number. It is a composite number with 4 divisors, and factors as 3 × 1,663. Written other ways, in hexadecimal, 0x137D.

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

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

4,977 4,978 4,979 4,980 4,981 4,982 4,983 4,984 4,985 4,986 4,987 4,988 4,989 4,990 4,991 4,992 4,993 4,994 4,995 4,996 4,997 4,998 4,999 5,000 5,001

less more

Properties

Parity: Odd
Digit count: 4
Digit sum: 30
Digit product: 2,592
Digital root: 3
Palindrome: No
Bit width: 13 bits
Reversed: 9,894
Recamán's sequence: a(28,150) = 4,989
Square (n²): 24,890,121
Cube (n³): 124,176,813,669
Divisor count: 4
σ(n) — sum of divisors: 6,656
φ(n) — Euler's totient: 3,324
Sum of prime factors: 1,666

Primality

Prime factorization: 3 × 1663

Nearest primes: 4,987 (−2) · 4,993 (+4)

Divisors & multiples

All divisors (4)

1 · 3 · 1663 · 4989

Aliquot sum (sum of proper divisors): 1,667

Factor pairs (a × b = 4,989)

1 × 4989

3 × 1663

First multiples

4,989 · 9,978 (double) · 14,967 · 19,956 · 24,945 · 29,934 · 34,923 · 39,912 · 44,901 · 49,890

Sums & aliquot sequence

As consecutive integers: 2,494 + 2,495 1,662 + 1,663 + 1,664 829 + 830 + 831 + 832 + 833 + 834

Aliquot sequence: 4,989 → 1,667 → 1 → 0 — terminates at zero

Continued fraction of √n

√4,989 = [70; (1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 6, 1, 2, 7, 11, 1, 1, 1, 2, 1, 27, 1, 1, 8, …)]

Representations

In words: four thousand nine hundred eighty-nine
Ordinal: 4989th
Binary: 1001101111101
Octal: 11575
Hexadecimal: 0x137D
Base64: E30=
One's complement: 60,546 (16-bit)
Scientific notation: 4.989 × 10³
As a duration: 4,989 s = 1 hour, 23 minutes, 9 seconds

In other bases

ternary (3) 20211210

quaternary (4) 1031331

quinary (5) 124424

senary (6) 35033

septenary (7) 20355

nonary (9) 6753

undecimal (11) 3826

duodecimal (12) 2a79

tridecimal (13) 236a

tetradecimal (14) 1b65

pentadecimal (15) 1729

As an angle

4,989° = 13 × 360° + 309°

309° ≈ 5.393 rad

Compass bearing: NW (northwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹 𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵δϡπθʹ
Mayan (base 20): 𝋬·𝋩·𝋩
Chinese: 四千九百八十九
Chinese (financial): 肆仟玖佰捌拾玖

In other modern scripts

Eastern Arabic ٤٩٨٩ Devanagari ४९८९ Bengali ৪৯৮৯ Tamil ௪௯௮௯ Thai ๔๙๘๙ Tibetan ༤༩༨༩ Khmer ៤៩៨៩ Lao ໔໙໘໙ Burmese ၄၉၈၉

Digit at this position in famous constants

π — Pi (π): Digit 4,989 = 6
e — Euler's number (e): Digit 4,989 = 1
φ — Golden ratio (φ): Digit 4,989 = 3
√2 — Pythagoras's (√2): Digit 4,989 = 3
ln 2 — Natural log of 2: Digit 4,989 = 2
γ — Euler-Mascheroni (γ): Digit 4,989 = 8

Also seen as

Hex color

#00137D

RGB(0, 19, 125)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.19.125.

Address: 0.0.19.125
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.19.125

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

Musical pitch

Heard as a frequency, 4,989 Hz is closest to:

Concert pitch (A4 = 440 Hz): D♯8 (4978 Hz, +4¢)
Scientific pitch (C4 = 256 Hz): D♯8 (4871 Hz, +41¢)
Baroque pitch (A4 = 415 Hz): E8 (4974.4 Hz, +5¢)

Position in π

The digit sequence 4989 first appears in π at position 2,179 of the decimal expansion (the 2,179ordinal-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 4989 on Pi Search ↗