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3,420

3,420 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 Gapful Number Harshad / Niven Odious Number Pernicious Number Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
4
Digit sum
9
Digit product
0
Digital root
9
Palindrome
No
Bit width
12 bits
Reversed
243
Recamán's sequence
a(15,051) = 3,420
Square (n²)
11,696,400
Cube (n³)
40,001,688,000
Divisor count
36
σ(n) — sum of divisors
10,920
φ(n) — Euler's totient
864
Sum of prime factors
34

Primality

Prime factorization: 2 2 × 3 2 × 5 × 19

Nearest primes: 3,413 (−7) · 3,433 (+13)

Divisors & multiples

All divisors (36)
1 · 2 · 3 · 4 · 5 · 6 · 9 · 10 · 12 · 15 · 18 · 19 · 20 · 30 · 36 · 38 · 45 · 57 · 60 · 76 · 90 · 95 · 114 · 171 · 180 · 190 · 228 · 285 · 342 · 380 · 570 · 684 · 855 · 1140 · 1710 (half) · 3420
Aliquot sum (sum of proper divisors): 7,500
Factor pairs (a × b = 3,420)
1 × 3420
2 × 1710
3 × 1140
4 × 855
5 × 684
6 × 570
9 × 380
10 × 342
12 × 285
15 × 228
18 × 190
19 × 180
20 × 171
30 × 114
36 × 95
38 × 90
45 × 76
57 × 60
First multiples
3,420 · 6,840 (double) · 10,260 · 13,680 · 17,100 · 20,520 · 23,940 · 27,360 · 30,780 · 34,200

Sums & aliquot sequence

As consecutive integers: 1,139 + 1,140 + 1,141 682 + 683 + 684 + 685 + 686 424 + 425 + … + 431 376 + 377 + … + 384
Aliquot sequence: 3,420 7,500 14,368 13,982 6,994 4,346 2,458 1,232 1,744 1,666 1,412 1,066 698 352 404 310 266 — unresolved within range

Representations

In words
three thousand four hundred twenty
Ordinal
3420th
Roman numeral
MMMCDXX
Binary
110101011100
Octal
6534
Hexadecimal
0xD5C
Base64
DVw=
One's complement
62,115 (16-bit)
In other bases
ternary (3) 11200200
quaternary (4) 311130
quinary (5) 102140
senary (6) 23500
septenary (7) 12654
nonary (9) 4620
undecimal (11) 262a
duodecimal (12) 1b90
tridecimal (13) 1731
tetradecimal (14) 1364
pentadecimal (15) 1030

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵γυκʹ
Mayan (base 20)
𝋨·𝋫·𝋠
Chinese
三千四百二十
Chinese (financial)
參仟肆佰貳拾
In other modern scripts
Eastern Arabic ٣٤٢٠ Devanagari ३४२० Bengali ৩৪২০ Tamil ௩௪௨௦ Thai ๓๔๒๐ Tibetan ༣༤༢༠ Khmer ៣៤២០ Lao ໓໔໒໐ Burmese ၃၄၂၀

Digit at this position in famous constants

π — Pi (π)
Digit 3,420 = 1
e — Euler's number (e)
Digit 3,420 = 1
φ — Golden ratio (φ)
Digit 3,420 = 9
√2 — Pythagoras's (√2)
Digit 3,420 = 4
ln 2 — Natural log of 2
Digit 3,420 = 3
γ — Euler-Mascheroni (γ)
Digit 3,420 = 0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 3420, here are decompositions:

  • 7 + 3413 = 3420
  • 13 + 3407 = 3420
  • 29 + 3391 = 3420
  • 31 + 3389 = 3420
  • 47 + 3373 = 3420
  • 59 + 3361 = 3420
  • 61 + 3359 = 3420
  • 73 + 3347 = 3420

Showing the first eight; more decompositions exist.

Unicode codepoint
Malayalam Fraction One Tenth
U+0D5C
Other number (No)

UTF-8 encoding: E0 B5 9C (3 bytes).

Hex color
#000D5C
RGB(0, 13, 92)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.13.92.

Address
0.0.13.92
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.13.92

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

Position in π

The digit sequence 3420 first appears in π at position 7,959 of the decimal expansion (the 7,959ordinal-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.