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4,320

4,320 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.).

4,320 (four thousand three hundred twenty) is an even 4-digit number. It is a composite number with 48 divisors, and factors as 2⁵ × 3³ × 5. Its proper divisors sum to 10,800, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x10E0.

Abundant Number Arithmetic Number Descending Digits Evil Number Gapful Number Harshad / Niven Highly Abundant Practical Number Recamán's Sequence Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
4
Digit sum
9
Digit product
0
Digital root
9
Palindrome
No
Bit width
13 bits
Reversed
234
Recamán's sequence
a(14,067) = 4,320
Square (n²)
18,662,400
Cube (n³)
80,621,568,000
Divisor count
48
σ(n) — sum of divisors
15,120
φ(n) — Euler's totient
1,152
Sum of prime factors
24

Primality

Prime factorization: 2 5 × 3 3 × 5

Nearest primes: 4,297 (−23) · 4,327 (+7)

Divisors & multiples

All divisors (48)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 9 · 10 · 12 · 15 · 16 · 18 · 20 · 24 · 27 · 30 · 32 · 36 · 40 · 45 · 48 · 54 · 60 · 72 · 80 · 90 · 96 · 108 · 120 · 135 · 144 · 160 · 180 · 216 · 240 · 270 · 288 · 360 · 432 · 480 · 540 · 720 · 864 · 1080 · 1440 · 2160 (half) · 4320
Aliquot sum (sum of proper divisors): 10,800
Factor pairs (a × b = 4,320)
1 × 4320
2 × 2160
3 × 1440
4 × 1080
5 × 864
6 × 720
8 × 540
9 × 480
10 × 432
12 × 360
15 × 288
16 × 270
18 × 240
20 × 216
24 × 180
27 × 160
30 × 144
32 × 135
36 × 120
40 × 108
45 × 96
48 × 90
54 × 80
60 × 72
First multiples
4,320 · 8,640 (double) · 12,960 · 17,280 · 21,600 · 25,920 · 30,240 · 34,560 · 38,880 · 43,200

Sums & aliquot sequence

As consecutive integers: 1,439 + 1,440 + 1,441 862 + 863 + 864 + 865 + 866 476 + 477 + … + 484 281 + 282 + … + 295
Aliquot sequence: 4,320 10,800 27,640 34,640 46,084 36,824 32,236 24,184 21,176 18,544 19,896 29,904 59,376 94,136 112,624 105,616 144,368 — unresolved within range

Continued fraction of √n

√4,320 = [65; (1, 2, 1, 1, 1, 13, 1, 31, 1, 13, 1, 1, 1, 2, 1, 130)]

Period length 16 — the block in parentheses repeats forever.

Representations

In words
four thousand three hundred twenty
Ordinal
4320th
Binary
1000011100000
Octal
10340
Hexadecimal
0x10E0
Base64
EOA=
One's complement
61,215 (16-bit)
Scientific notation
4.32 × 10³
As a duration
4,320 s = 1 hour, 12 minutes
In other bases
ternary (3) 12221000
quaternary (4) 1003200
quinary (5) 114240
senary (6) 32000
septenary (7) 15411
nonary (9) 5830
undecimal (11) 3278
duodecimal (12) 2600
tridecimal (13) 1c74
tetradecimal (14) 1808
pentadecimal (15) 1430

As an angle

4,320° = 12 × 360°
0° ≈ 0 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹 𒌋𒁹𒁹 ·
Egyptian hieroglyphic
𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵δτκʹ
Mayan (base 20)
𝋪·𝋰·𝋠
Chinese
四千三百二十
Chinese (financial)
肆仟參佰貳拾
In other modern scripts
Eastern Arabic ٤٣٢٠ Devanagari ४३२० Bengali ৪৩২০ Tamil ௪௩௨௦ Thai ๔๓๒๐ Tibetan ༤༣༢༠ Khmer ៤៣២០ Lao ໔໓໒໐ Burmese ၄၃၂၀

Digit at this position in famous constants

π — Pi (π)
Digit 4,320 = 3
e — Euler's number (e)
Digit 4,320 = 2
φ — Golden ratio (φ)
Digit 4,320 = 8
√2 — Pythagoras's (√2)
Digit 4,320 = 7
ln 2 — Natural log of 2
Digit 4,320 = 4
γ — Euler-Mascheroni (γ)
Digit 4,320 = 7

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4320, here are decompositions:

  • 23 + 4297 = 4320
  • 31 + 4289 = 4320
  • 37 + 4283 = 4320
  • 47 + 4273 = 4320
  • 59 + 4261 = 4320
  • 61 + 4259 = 4320
  • 67 + 4253 = 4320
  • 79 + 4241 = 4320

Showing the first eight; more decompositions exist.

Unicode codepoint
Georgian Letter Rae
U+10E0
Lowercase letter (Ll)

UTF-8 encoding: E1 83 A0 (3 bytes).

Hex color
#0010E0
RGB(0, 16, 224)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.16.224.

Address
0.0.16.224
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.16.224

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

Musical pitch

Heard as a frequency, 4,320 Hz is closest to:

  • Concert pitch (A4 = 440 Hz): C♯8 (4434.9 Hz, -45¢ — about midway to C8)
  • Scientific pitch (C4 = 256 Hz): C♯8 (4339.6 Hz, -8¢)
  • Baroque pitch (A4 = 415 Hz): D8 (4431.7 Hz, -44¢)
Position in π

The digit sequence 4320 first appears in π at position 25,894 of the decimal expansion (the 25,894ordinal-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.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.