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6,426

6,426 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 Evil Number Harshad / Niven Heptagonal Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
4
Digit sum
18
Digit product
288
Digital root
9
Palindrome
No
Bit width
13 bits
Reversed
6,246
Recamán's sequence
a(27,048) = 6,426
Square (n²)
41,293,476
Cube (n³)
265,351,876,776
Divisor count
32
σ(n) — sum of divisors
17,280
φ(n) — Euler's totient
1,728
Sum of prime factors
35

Primality

Prime factorization: 2 × 3 3 × 7 × 17

Nearest primes: 6,421 (−5) · 6,427 (+1)

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 6 · 7 · 9 · 14 · 17 · 18 · 21 · 27 · 34 · 42 · 51 · 54 · 63 · 102 · 119 · 126 · 153 · 189 · 238 · 306 · 357 · 378 · 459 · 714 · 918 · 1071 · 2142 · 3213 (half) · 6426
Aliquot sum (sum of proper divisors): 10,854
Factor pairs (a × b = 6,426)
1 × 6426
2 × 3213
3 × 2142
6 × 1071
7 × 918
9 × 714
14 × 459
17 × 378
18 × 357
21 × 306
27 × 238
34 × 189
42 × 153
51 × 126
54 × 119
63 × 102
First multiples
6,426 · 12,852 (double) · 19,278 · 25,704 · 32,130 · 38,556 · 44,982 · 51,408 · 57,834 · 64,260

Sums & aliquot sequence

As consecutive integers: 2,141 + 2,142 + 2,143 1,605 + 1,606 + 1,607 + 1,608 915 + 916 + … + 921 710 + 711 + … + 718
Aliquot sequence: 6,426 10,854 13,830 19,434 20,886 21,606 25,098 26,742 26,754 40,446 63,234 77,406 110,754 171,486 253,458 295,740 647,748 — unresolved within range

Representations

In words
six thousand four hundred twenty-six
Ordinal
6426th
Binary
1100100011010
Octal
14432
Hexadecimal
0x191A
Base64
GRo=
One's complement
59,109 (16-bit)
In other bases
ternary (3) 22211000
quaternary (4) 1210122
quinary (5) 201201
senary (6) 45430
septenary (7) 24510
nonary (9) 8730
undecimal (11) 4912
duodecimal (12) 3876
tridecimal (13) 2c04
tetradecimal (14) 24b0
pentadecimal (15) 1d86

Historical numeral systems

Babylonian (base 60)
𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ϛυκϛʹ
Mayan (base 20)
𝋰·𝋡·𝋦
Chinese
六千四百二十六
Chinese (financial)
陸仟肆佰貳拾陸
In other modern scripts
Eastern Arabic ٦٤٢٦ Devanagari ६४२६ Bengali ৬৪২৬ Tamil ௬௪௨௬ Thai ๖๔๒๖ Tibetan ༦༤༢༦ Khmer ៦៤២៦ Lao ໖໔໒໖ Burmese ၆၄၂၆

Digit at this position in famous constants

π — Pi (π)
Digit 6,426 = 1
e — Euler's number (e)
Digit 6,426 = 1
φ — Golden ratio (φ)
Digit 6,426 = 2
√2 — Pythagoras's (√2)
Digit 6,426 = 4
ln 2 — Natural log of 2
Digit 6,426 = 3
γ — Euler-Mascheroni (γ)
Digit 6,426 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 6426, here are decompositions:

  • 5 + 6421 = 6426
  • 29 + 6397 = 6426
  • 37 + 6389 = 6426
  • 47 + 6379 = 6426
  • 53 + 6373 = 6426
  • 59 + 6367 = 6426
  • 67 + 6359 = 6426
  • 73 + 6353 = 6426

Showing the first eight; more decompositions exist.

Unicode codepoint
Limbu Letter Ssa
U+191A
Other letter (Lo)

UTF-8 encoding: E1 A4 9A (3 bytes).

Hex color
#00191A
RGB(0, 25, 26)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.25.26.

Address
0.0.25.26
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.25.26

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

Position in π

The digit sequence 6426 first appears in π at position 3,931 of the decimal expansion (the 3,931ordinal-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.