Live analysis

4,820

4,820 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.).

4,820 (four thousand eight hundred twenty) is an even 4-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 241. Its proper divisors sum to 5,344, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x12D4.

Abundant Number Arithmetic Number Cube-Free Evil Number Recamán's Sequence Semiperfect Number

Interestingness

★ ★ ☆ ☆ ☆

4 notable facts · grade D

4,808 4,809 4,810 4,811 4,812 4,813 4,814 4,815 4,816 4,817 4,818 4,819 4,820 4,821 4,822 4,823 4,824 4,825 4,826 4,827 4,828 4,829 4,830 4,831 4,832

less more

Properties

Parity: Even
Digit count: 4
Digit sum: 14
Digit product: 0
Digital root: 5
Palindrome: No
Bit width: 13 bits
Reversed: 284
Recamán's sequence: a(1,776) = 4,820
Square (n²): 23,232,400
Cube (n³): 111,980,168,000
Divisor count: 12
σ(n) — sum of divisors: 10,164
φ(n) — Euler's totient: 1,920
Sum of prime factors: 250

Primality

Prime factorization: 2 ² × 5 × 241

Nearest primes: 4,817 (−3) · 4,831 (+11)

Divisors & multiples

All divisors (12)

1 · 2 · 4 · 5 · 10 · 20 · 241 · 482 · 964 · 1205 · 2410 (half) · 4820

Aliquot sum (sum of proper divisors): 5,344

Factor pairs (a × b = 4,820)

1 × 4820

2 × 2410

4 × 1205

5 × 964

10 × 482

20 × 241

First multiples

4,820 · 9,640 (double) · 14,460 · 19,280 · 24,100 · 28,920 · 33,740 · 38,560 · 43,380 · 48,200

Sums & aliquot sequence

As a sum of two squares: 14² + 68² = 46² + 52²

As consecutive integers: 962 + 963 + 964 + 965 + 966 599 + 600 + … + 606 101 + 102 + … + 140

Aliquot sequence: 4,820 → 5,344 → 5,240 → 6,640 → 8,984 → 7,876 → 7,244 → 5,440 → 8,276 → 6,214 → 3,866 → 1,936 → 2,187 → 1,093 → 1 → 0 — terminates at zero

Continued fraction of √n

√4,820 = [69; (2, 2, 1, 7, 1, 26, 1, 7, 1, 2, 2, 138)]

Period length 12 — the block in parentheses repeats forever.

Representations

In words: four thousand eight hundred twenty
Ordinal: 4820th
Binary: 1001011010100
Octal: 11324
Hexadecimal: 0x12D4
Base64: EtQ=
One's complement: 60,715 (16-bit)
Scientific notation: 4.82 × 10³
As a duration: 4,820 s = 1 hour, 20 minutes, 20 seconds

In other bases

ternary (3) 20121112

quaternary (4) 1023110

quinary (5) 123240

senary (6) 34152

septenary (7) 20024

nonary (9) 6545

undecimal (11) 3692

duodecimal (12) 2958

tridecimal (13) 226a

tetradecimal (14) 1a84

pentadecimal (15) 1665

As an angle

4,820° = 13 × 360° + 140°

140° ≈ 2.443 rad

Compass bearing: SE (southeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹 𒌋𒌋 𒌋𒌋
Egyptian hieroglyphic: 𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian): ͵δωκʹ
Mayan (base 20): 𝋬·𝋡·𝋠
Chinese: 四千八百二十
Chinese (financial): 肆仟捌佰貳拾

In other modern scripts

Eastern Arabic ٤٨٢٠ Devanagari ४८२० Bengali ৪৮২০ Tamil ௪௮௨௦ Thai ๔๘๒๐ Tibetan ༤༨༢༠ Khmer ៤៨២០ Lao ໔໘໒໐ Burmese ၄၈၂၀

Digit at this position in famous constants

π — Pi (π): Digit 4,820 = 5
e — Euler's number (e): Digit 4,820 = 3
φ — Golden ratio (φ): Digit 4,820 = 0
√2 — Pythagoras's (√2): Digit 4,820 = 6
ln 2 — Natural log of 2: Digit 4,820 = 0
γ — Euler-Mascheroni (γ): Digit 4,820 = 2

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4820, here are decompositions:

3 + 4817 = 4820
7 + 4813 = 4820
19 + 4801 = 4820
31 + 4789 = 4820
37 + 4783 = 4820
61 + 4759 = 4820
97 + 4723 = 4820
157 + 4663 = 4820

Showing the first eight; more decompositions exist.

Unicode codepoint

ዔ

Ethiopic Syllable Pharyngeal Ee

U+12D4

Other letter (Lo)

UTF-8 encoding: E1 8B 94 (3 bytes).

Lookup U+12D4 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0012D4

RGB(0, 18, 212)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.18.212.

Address: 0.0.18.212
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.18.212

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

Musical pitch

Heard as a frequency, 4,820 Hz is closest to:

Concert pitch (A4 = 440 Hz): D8 (4698.6 Hz, +44¢)
Scientific pitch (C4 = 256 Hz): D♯8 (4871 Hz, -18¢)
Baroque pitch (A4 = 415 Hz): D♯8 (4695.2 Hz, +45¢ — about midway to E8)

Position in π

The digit sequence 4820 first appears in π at position 8,895 of the decimal expansion (the 8,895ordinal-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 4820 on Pi Search ↗