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3,120

3,120 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 Evil Number Gapful Number Harshad / Niven Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
4
Digit sum
6
Digit product
0
Digital root
6
Palindrome
No
Bit width
12 bits
Reversed
213
Recamán's sequence
a(1,679) = 3,120
Square (n²)
9,734,400
Cube (n³)
30,371,328,000
Divisor count
40
σ(n) — sum of divisors
10,416
φ(n) — Euler's totient
768
Sum of prime factors
29

Primality

Prime factorization: 2 4 × 3 × 5 × 13

Nearest primes: 3,119 (−1) · 3,121 (+1)

Divisors & multiples

All divisors (40)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 13 · 15 · 16 · 20 · 24 · 26 · 30 · 39 · 40 · 48 · 52 · 60 · 65 · 78 · 80 · 104 · 120 · 130 · 156 · 195 · 208 · 240 · 260 · 312 · 390 · 520 · 624 · 780 · 1040 · 1560 (half) · 3120
Aliquot sum (sum of proper divisors): 7,296
Factor pairs (a × b = 3,120)
1 × 3120
2 × 1560
3 × 1040
4 × 780
5 × 624
6 × 520
8 × 390
10 × 312
12 × 260
13 × 240
15 × 208
16 × 195
20 × 156
24 × 130
26 × 120
30 × 104
39 × 80
40 × 78
48 × 65
52 × 60
First multiples
3,120 · 6,240 (double) · 9,360 · 12,480 · 15,600 · 18,720 · 21,840 · 24,960 · 28,080 · 31,200

Sums & aliquot sequence

As consecutive integers: 1,039 + 1,040 + 1,041 622 + 623 + 624 + 625 + 626 234 + 235 + … + 246 201 + 202 + … + 215
Aliquot sequence: 3,120 → 7,296 → 13,104 → 32,032 → 52,640 → 92,512 → 122,948 → 123,004 → 135,044 → 166,600 → 310,490 → 258,670 → 206,954 → 147,286 → 73,646 → 41,698 → 20,852 — unresolved within range

Representations

In words
three thousand one hundred twenty
Ordinal
3120th
Roman numeral
MMMCXX
Binary
110000110000
Octal
6060
Hexadecimal
0xC30
Base64
DDA=
One's complement
62,415 (16-bit)
In other bases
ternary (3) 11021120
quaternary (4) 300300
quinary (5) 44440
senary (6) 22240
septenary (7) 12045
nonary (9) 4246
undecimal (11) 2387
duodecimal (12) 1980
tridecimal (13) 1560
tetradecimal (14) 11cc
pentadecimal (15) dd0

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒌋𒁹𒁹 ·
Egyptian hieroglyphic
𓆼𓆼𓆼𓍢𓎆𓎆
Greek (Milesian)
͵γρκʹ
Mayan (base 20)
𝋧·𝋰·𝋠
Chinese
三千一百二十
Chinese (financial)
參仟壹佰貳拾
In other modern scripts
Eastern Arabic ٣١٢٠ Devanagari ३१२० Bengali ৩১২০ Tamil ௩௧௨௦ Thai ๓๑๒๐ Tibetan ༣༡༢༠ Khmer ៣១២០ Lao ໓໑໒໐ Burmese ၃၁၂၀

Digit at this position in famous constants

π — Pi (π)
Digit 3,120 = 0
e — Euler's number (e)
Digit 3,120 = 8
φ — Golden ratio (φ)
Digit 3,120 = 9
√2 — Pythagoras's (√2)
Digit 3,120 = 1
ln 2 — Natural log of 2
Digit 3,120 = 9
γ — Euler-Mascheroni (γ)
Digit 3,120 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 3120, here are decompositions:

  • 11 + 3109 = 3120
  • 31 + 3089 = 3120
  • 37 + 3083 = 3120
  • 41 + 3079 = 3120
  • 53 + 3067 = 3120
  • 59 + 3061 = 3120
  • 71 + 3049 = 3120
  • 79 + 3041 = 3120

Showing the first eight; more decompositions exist.

Unicode codepoint
ర
Telugu Letter Ra
U+0C30
Other letter (Lo)

UTF-8 encoding: E0 B0 B0 (3 bytes).

Lookup U+0C30 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#000C30
RGB(0, 12, 48)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.12.48.

Address
0.0.12.48
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.12.48

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

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000003120
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.

Look up on FedACH (official) ↗ Search Google for routing number 000003120 ↗
Position in π

The digit sequence 3120 first appears in π at position 17,781 of the decimal expansion (the 17,781ordinal-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.

Look up 3120 on Pi Search ↗