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490,028

490,028 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.).

490,028 (four hundred ninety thousand twenty-eight) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 7 × 11 × 37 × 43. Its proper divisors sum to 633,556, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77A2C.

Abundant Number Arithmetic Number Cube-Free Odious Number Pernicious Number Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
23
Digit product
0
Digital root
5
Palindrome
No
Bit width
19 bits
Reversed
820,094
Square (n²)
240,127,440,784
Cube (n³)
117,669,169,552,501,952
Divisor count
48
σ(n) — sum of divisors
1,123,584
φ(n) — Euler's totient
181,440
Sum of prime factors
102

Primality

Prime factorization: 2 2 × 7 × 11 × 37 × 43

Nearest primes: 490,019 (−9) · 490,031 (+3)

Divisors & multiples

All divisors (48)
1 · 2 · 4 · 7 · 11 · 14 · 22 · 28 · 37 · 43 · 44 · 74 · 77 · 86 · 148 · 154 · 172 · 259 · 301 · 308 · 407 · 473 · 518 · 602 · 814 · 946 · 1036 · 1204 · 1591 · 1628 · 1892 · 2849 · 3182 · 3311 · 5698 · 6364 · 6622 · 11137 · 11396 · 13244 · 17501 · 22274 · 35002 · 44548 · 70004 · 122507 · 245014 (half) · 490028
Aliquot sum (sum of proper divisors): 633,556
Factor pairs (a × b = 490,028)
1 × 490028
2 × 245014
4 × 122507
7 × 70004
11 × 44548
14 × 35002
22 × 22274
28 × 17501
37 × 13244
43 × 11396
44 × 11137
74 × 6622
77 × 6364
86 × 5698
148 × 3311
154 × 3182
172 × 2849
259 × 1892
301 × 1628
308 × 1591
407 × 1204
473 × 1036
518 × 946
602 × 814
First multiples
490,028 · 980,056 (double) · 1,470,084 · 1,960,112 · 2,450,140 · 2,940,168 · 3,430,196 · 3,920,224 · 4,410,252 · 4,900,280

Sums & aliquot sequence

As consecutive integers: 70,001 + 70,002 + … + 70,007 61,250 + 61,251 + … + 61,257 44,543 + 44,544 + … + 44,553 13,226 + 13,227 + … + 13,262
Aliquot sequence: 490,028 633,556 842,156 931,924 959,084 959,140 1,750,364 2,069,284 2,099,804 2,321,956 2,679,964 2,680,020 6,862,380 15,098,580 39,623,724 76,096,244 76,282,444 — unresolved within range

Continued fraction of √n

√490,028 = [700; (50, 1400)]

Period length 2 — the block in parentheses repeats forever.

Representations

In words
four hundred ninety thousand twenty-eight
Ordinal
490028th
Binary
1110111101000101100
Octal
1675054
Hexadecimal
0x77A2C
Base64
B3os
One's complement
4,294,477,267 (32-bit)
Scientific notation
4.90028 × 10⁵
As a duration
490,028 s = 5 days, 16 hours, 7 minutes, 8 seconds
In other bases
ternary (3) 220220012012
quaternary (4) 1313220230
quinary (5) 111140103
senary (6) 14300352
septenary (7) 4110440
nonary (9) 826165
undecimal (11) 305190
duodecimal (12) 1b76b8
tridecimal (13) 142076
tetradecimal (14) ca820
pentadecimal (15) 9a2d8

As an angle

490,028° = 1,361 × 360° + 68°
68° ≈ 1.187 rad
Compass bearing: ENE (east-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵υϟκηʹ
Chinese
四十九萬零二十八
Chinese (financial)
肆拾玖萬零貳拾捌
In other modern scripts
Eastern Arabic ٤٩٠٠٢٨ Devanagari ४९००२८ Bengali ৪৯০০২৮ Tamil ௪௯௦௦௨௮ Thai ๔๙๐๐๒๘ Tibetan ༤༩༠༠༢༨ Khmer ៤៩០០២៨ Lao ໔໙໐໐໒໘ Burmese ၄၉၀၀၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 490028, here are decompositions:

  • 67 + 489961 = 490028
  • 127 + 489901 = 490028
  • 157 + 489871 = 490028
  • 181 + 489847 = 490028
  • 211 + 489817 = 490028
  • 229 + 489799 = 490028
  • 337 + 489691 = 490028
  • 349 + 489679 = 490028

Showing the first eight; more decompositions exist.

Hex color
#077A2C
RGB(7, 122, 44)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.122.44.

Address
0.7.122.44
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.122.44

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 490,028 and was likely granted around 1892.

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

Position in π

The digit sequence 490028 first appears in π at position 479,302 of the decimal expansion (the 479,302ordinal-suffix:nd 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.

Related reading

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