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3,220

3,220 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.).
Abundant Number Arithmetic Number Harshad / Niven Odious Number Pernicious Number Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
4
Digit sum
7
Digit product
0
Digital root
7
Palindrome
No
Bit width
12 bits
Reversed
223
Recamán's sequence
a(6,908) = 3,220
Square (n²)
10,368,400
Cube (n³)
33,386,248,000
Divisor count
24
σ(n) — sum of divisors
8,064
φ(n) — Euler's totient
1,056
Sum of prime factors
39

Primality

Prime factorization: 2 2 × 5 × 7 × 23

Nearest primes: 3,217 (−3) · 3,221 (+1)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 7 · 10 · 14 · 20 · 23 · 28 · 35 · 46 · 70 · 92 · 115 · 140 · 161 · 230 · 322 · 460 · 644 · 805 · 1610 (half) · 3220
Aliquot sum (sum of proper divisors): 4,844
Factor pairs (a × b = 3,220)
1 × 3220
2 × 1610
4 × 805
5 × 644
7 × 460
10 × 322
14 × 230
20 × 161
23 × 140
28 × 115
35 × 92
46 × 70
First multiples
3,220 · 6,440 (double) · 9,660 · 12,880 · 16,100 · 19,320 · 22,540 · 25,760 · 28,980 · 32,200

Sums & aliquot sequence

As consecutive integers: 642 + 643 + 644 + 645 + 646 457 + 458 + … + 463 399 + 400 + … + 406 129 + 130 + … + 151
Aliquot sequence: 3,220 4,844 4,900 7,469 1,939 285 195 141 51 21 11 1 0 — terminates at zero

Representations

In words
three thousand two hundred twenty
Ordinal
3220th
Roman numeral
MMMCCXX
Binary
110010010100
Octal
6224
Hexadecimal
0xC94
Base64
DJQ=
One's complement
62,315 (16-bit)
In other bases
ternary (3) 11102021
quaternary (4) 302110
quinary (5) 100340
senary (6) 22524
septenary (7) 12250
nonary (9) 4367
undecimal (11) 2468
duodecimal (12) 1a44
tridecimal (13) 1609
tetradecimal (14) 1260
pentadecimal (15) e4a

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓆼𓆼𓆼𓍢𓍢𓎆𓎆
Greek (Milesian)
͵γσκʹ
Mayan (base 20)
𝋨·𝋡·𝋠
Chinese
三千二百二十
Chinese (financial)
參仟貳佰貳拾
In other modern scripts
Eastern Arabic ٣٢٢٠ Devanagari ३२२० Bengali ৩২২০ Tamil ௩௨௨௦ Thai ๓๒๒๐ Tibetan ༣༢༢༠ Khmer ៣២២០ Lao ໓໒໒໐ Burmese ၃၂၂၀

Digit at this position in famous constants

π — Pi (π)
Digit 3,220 = 8
e — Euler's number (e)
Digit 3,220 = 0
φ — Golden ratio (φ)
Digit 3,220 = 4
√2 — Pythagoras's (√2)
Digit 3,220 = 8
ln 2 — Natural log of 2
Digit 3,220 = 2
γ — Euler-Mascheroni (γ)
Digit 3,220 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 3220, here are decompositions:

  • 3 + 3217 = 3220
  • 11 + 3209 = 3220
  • 17 + 3203 = 3220
  • 29 + 3191 = 3220
  • 53 + 3167 = 3220
  • 83 + 3137 = 3220
  • 101 + 3119 = 3220
  • 131 + 3089 = 3220

Showing the first eight; more decompositions exist.

Unicode codepoint
Kannada Letter Au
U+0C94
Other letter (Lo)

UTF-8 encoding: E0 B2 94 (3 bytes).

Hex color
#000C94
RGB(0, 12, 148)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.12.148.

Address
0.0.12.148
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.12.148

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

Position in π

The digit sequence 3220 first appears in π at position 5,351 of the decimal expansion (the 5,351ordinal-suffix:st 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.