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490,800

490,800 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.).

490,800 (four hundred ninety thousand eight hundred) is an even 6-digit number. It is a composite number with 60 divisors, and factors as 2⁴ × 3 × 5² × 409. Its proper divisors sum to 1,085,240, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77D30.

Abundant Number Gapful Number Odious Number Pernicious Number Practical Number Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
21
Digit product
0
Digital root
3
Palindrome
No
Bit width
19 bits
Reversed
8,094
Square (n²)
240,884,640,000
Cube (n³)
118,226,181,312,000,000
Divisor count
60
σ(n) — sum of divisors
1,576,040
φ(n) — Euler's totient
130,560
Sum of prime factors
430

Primality

Prime factorization: 2 4 × 3 × 5 2 × 409

Nearest primes: 490,783 (−17) · 490,829 (+29)

Divisors & multiples

All divisors (60)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 16 · 20 · 24 · 25 · 30 · 40 · 48 · 50 · 60 · 75 · 80 · 100 · 120 · 150 · 200 · 240 · 300 · 400 · 409 · 600 · 818 · 1200 · 1227 · 1636 · 2045 · 2454 · 3272 · 4090 · 4908 · 6135 · 6544 · 8180 · 9816 · 10225 · 12270 · 16360 · 19632 · 20450 · 24540 · 30675 · 32720 · 40900 · 49080 · 61350 · 81800 · 98160 · 122700 · 163600 · 245400 (half) · 490800
Aliquot sum (sum of proper divisors): 1,085,240
Factor pairs (a × b = 490,800)
1 × 490800
2 × 245400
3 × 163600
4 × 122700
5 × 98160
6 × 81800
8 × 61350
10 × 49080
12 × 40900
15 × 32720
16 × 30675
20 × 24540
24 × 20450
25 × 19632
30 × 16360
40 × 12270
48 × 10225
50 × 9816
60 × 8180
75 × 6544
80 × 6135
100 × 4908
120 × 4090
150 × 3272
200 × 2454
240 × 2045
300 × 1636
400 × 1227
409 × 1200
600 × 818
First multiples
490,800 · 981,600 (double) · 1,472,400 · 1,963,200 · 2,454,000 · 2,944,800 · 3,435,600 · 3,926,400 · 4,417,200 · 4,908,000

Sums & aliquot sequence

As consecutive integers: 163,599 + 163,600 + 163,601 98,158 + 98,159 + 98,160 + 98,161 + 98,162 32,713 + 32,714 + … + 32,727 19,620 + 19,621 + … + 19,644
Aliquot sequence: 490,800 1,085,240 1,545,640 2,138,240 3,388,120 4,349,000 5,830,000 9,858,728 10,307,032 10,155,728 12,446,992 13,506,704 15,729,520 21,236,864 24,920,176 24,275,336 21,482,104 — unresolved within range

Continued fraction of √n

√490,800 = [700; (1, 1, 3, 87, 3, 1, 1, 1400)]

Period length 8 — the block in parentheses repeats forever.

Representations

In words
four hundred ninety thousand eight hundred
Ordinal
490800th
Binary
1110111110100110000
Octal
1676460
Hexadecimal
0x77D30
Base64
B30w
One's complement
4,294,476,495 (32-bit)
Scientific notation
4.908 × 10⁵
As a duration
490,800 s = 5 days, 16 hours, 20 minutes
In other bases
ternary (3) 220221020210
quaternary (4) 1313310300
quinary (5) 111201200
senary (6) 14304120
septenary (7) 4112622
nonary (9) 827223
undecimal (11) 305822
duodecimal (12) 1b8040
tridecimal (13) 14251b
tetradecimal (14) cac12
pentadecimal (15) 9a650

As an angle

490,800° = 1,363 × 360° + 120°
120° ≈ 2.094 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 ·
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢
Greek (Milesian)
͵υϟωʹ
Chinese
四十九萬零八百
Chinese (financial)
肆拾玖萬零捌佰
In other modern scripts
Eastern Arabic ٤٩٠٨٠٠ Devanagari ४९०८०० Bengali ৪৯০৮০০ Tamil ௪௯௦௮௦௦ Thai ๔๙๐๘๐๐ Tibetan ༤༩༠༨༠༠ Khmer ៤៩០៨០០ Lao ໔໙໐໘໐໐ Burmese ၄၉၀၈၀၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 490800, here are decompositions:

  • 17 + 490783 = 490800
  • 29 + 490771 = 490800
  • 31 + 490769 = 490800
  • 59 + 490741 = 490800
  • 67 + 490733 = 490800
  • 103 + 490697 = 490800
  • 137 + 490663 = 490800
  • 139 + 490661 = 490800

Showing the first eight; more decompositions exist.

Hex color
#077D30
RGB(7, 125, 48)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.125.48.

Address
0.7.125.48
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.125.48

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

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 490,800 and was likely granted around 1892.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.