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20,460

20,460 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 Gapful Number Harshad / Niven Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
12
Digit product
0
Digital root
3
Palindrome
No
Bit width
15 bits
Reversed
6,402
Recamán's sequence
a(86,296) = 20,460
Square (n²)
418,611,600
Cube (n³)
8,564,793,336,000
Divisor count
48
σ(n) — sum of divisors
64,512
φ(n) — Euler's totient
4,800
Sum of prime factors
54

Primality

Prime factorization: 2 2 × 3 × 5 × 11 × 31

Nearest primes: 20,443 (−17) · 20,477 (+17)

Divisors & multiples

All divisors (48)
1 · 2 · 3 · 4 · 5 · 6 · 10 · 11 · 12 · 15 · 20 · 22 · 30 · 31 · 33 · 44 · 55 · 60 · 62 · 66 · 93 · 110 · 124 · 132 · 155 · 165 · 186 · 220 · 310 · 330 · 341 · 372 · 465 · 620 · 660 · 682 · 930 · 1023 · 1364 · 1705 · 1860 · 2046 · 3410 · 4092 · 5115 · 6820 · 10230 (half) · 20460
Aliquot sum (sum of proper divisors): 44,052
Factor pairs (a × b = 20,460)
1 × 20460
2 × 10230
3 × 6820
4 × 5115
5 × 4092
6 × 3410
10 × 2046
11 × 1860
12 × 1705
15 × 1364
20 × 1023
22 × 930
30 × 682
31 × 660
33 × 620
44 × 465
55 × 372
60 × 341
62 × 330
66 × 310
93 × 220
110 × 186
124 × 165
132 × 155
First multiples
20,460 · 40,920 (double) · 61,380 · 81,840 · 102,300 · 122,760 · 143,220 · 163,680 · 184,140 · 204,600

Sums & aliquot sequence

As consecutive integers: 6,819 + 6,820 + 6,821 4,090 + 4,091 + 4,092 + 4,093 + 4,094 2,554 + 2,555 + … + 2,561 1,855 + 1,856 + … + 1,865
Aliquot sequence: 20,460 44,052 58,764 82,356 109,836 180,636 240,876 368,096 356,656 334,396 265,364 258,124 203,540 223,936 220,564 171,660 309,156 — unresolved within range

Representations

In words
twenty thousand four hundred sixty
Ordinal
20460th
Binary
100111111101100
Octal
47754
Hexadecimal
0x4FEC
Base64
T+w=
One's complement
45,075 (16-bit)
In other bases
ternary (3) 1001001210
quaternary (4) 10333230
quinary (5) 1123320
senary (6) 234420
septenary (7) 113436
nonary (9) 31053
undecimal (11) 14410
duodecimal (12) ba10
tridecimal (13) 940b
tetradecimal (14) 7656
pentadecimal (15) 60e0

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 ·
Egyptian hieroglyphic
𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵κυξʹ
Mayan (base 20)
𝋢·𝋫·𝋣·𝋠
Chinese
二萬零四百六十
Chinese (financial)
貳萬零肆佰陸拾
In other modern scripts
Eastern Arabic ٢٠٤٦٠ Devanagari २०४६० Bengali ২০৪৬০ Tamil ௨௦௪௬௦ Thai ๒๐๔๖๐ Tibetan ༢༠༤༦༠ Khmer ២០៤៦០ Lao ໒໐໔໖໐ Burmese ၂၀၄၆၀

Digit at this position in famous constants

π — Pi (π)
Digit 20,460 = 0
e — Euler's number (e)
Digit 20,460 = 7
φ — Golden ratio (φ)
Digit 20,460 = 1
√2 — Pythagoras's (√2)
Digit 20,460 = 3
ln 2 — Natural log of 2
Digit 20,460 = 3
γ — Euler-Mascheroni (γ)
Digit 20,460 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 20460, here are decompositions:

  • 17 + 20443 = 20460
  • 19 + 20441 = 20460
  • 29 + 20431 = 20460
  • 53 + 20407 = 20460
  • 61 + 20399 = 20460
  • 67 + 20393 = 20460
  • 71 + 20389 = 20460
  • 101 + 20359 = 20460

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-4Fec
U+4FEC
Other letter (Lo)

UTF-8 encoding: E4 BF AC (3 bytes).

Hex color
#004FEC
RGB(0, 79, 236)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.79.236.

Address
0.0.79.236
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.79.236

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

Position in π

The digit sequence 20460 first appears in π at position 102,084 of the decimal expansion (the 102,084ordinal-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.