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490,420

490,420 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.).

490,420 (four hundred ninety thousand four hundred twenty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 5 × 7 × 31 × 113. Its proper divisors sum to 735,308, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77BB4.

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

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
19 bits
Reversed
24,094
Square (n²)
240,511,776,400
Cube (n³)
117,951,785,382,088,000
Divisor count
48
σ(n) — sum of divisors
1,225,728
φ(n) — Euler's totient
161,280
Sum of prime factors
160

Primality

Prime factorization: 2 2 × 5 × 7 × 31 × 113

Nearest primes: 490,417 (−3) · 490,421 (+1)

Divisors & multiples

All divisors (48)
1 · 2 · 4 · 5 · 7 · 10 · 14 · 20 · 28 · 31 · 35 · 62 · 70 · 113 · 124 · 140 · 155 · 217 · 226 · 310 · 434 · 452 · 565 · 620 · 791 · 868 · 1085 · 1130 · 1582 · 2170 · 2260 · 3164 · 3503 · 3955 · 4340 · 7006 · 7910 · 14012 · 15820 · 17515 · 24521 · 35030 · 49042 · 70060 · 98084 · 122605 · 245210 (half) · 490420
Aliquot sum (sum of proper divisors): 735,308
Factor pairs (a × b = 490,420)
1 × 490420
2 × 245210
4 × 122605
5 × 98084
7 × 70060
10 × 49042
14 × 35030
20 × 24521
28 × 17515
31 × 15820
35 × 14012
62 × 7910
70 × 7006
113 × 4340
124 × 3955
140 × 3503
155 × 3164
217 × 2260
226 × 2170
310 × 1582
434 × 1130
452 × 1085
565 × 868
620 × 791
First multiples
490,420 · 980,840 (double) · 1,471,260 · 1,961,680 · 2,452,100 · 2,942,520 · 3,432,940 · 3,923,360 · 4,413,780 · 4,904,200

Sums & aliquot sequence

As consecutive integers: 98,082 + 98,083 + 98,084 + 98,085 + 98,086 70,057 + 70,058 + … + 70,063 61,299 + 61,300 + … + 61,306 15,805 + 15,806 + … + 15,835
Aliquot sequence: 490,420 735,308 735,364 735,420 1,780,548 3,638,460 8,005,956 13,498,044 24,703,812 50,372,028 95,147,892 189,278,348 189,982,324 190,497,356 202,789,300 302,456,140 427,303,604 — unresolved within range

Continued fraction of √n

√490,420 = [700; (3, 2, 1, 154, 1, 11, 1, 5, 1, 16, 2, 3, 2, 1, 1, 6, 3, 1, 1, 1, 1, 1, 9, 2, …)]

Representations

In words
four hundred ninety thousand four hundred twenty
Ordinal
490420th
Binary
1110111101110110100
Octal
1675664
Hexadecimal
0x77BB4
Base64
B3u0
One's complement
4,294,476,875 (32-bit)
Scientific notation
4.9042 × 10⁵
As a duration
490,420 s = 5 days, 16 hours, 13 minutes, 40 seconds
In other bases
ternary (3) 220220201201
quaternary (4) 1313232310
quinary (5) 111143140
senary (6) 14302244
septenary (7) 4111540
nonary (9) 826651
undecimal (11) 305507
duodecimal (12) 1b7984
tridecimal (13) 1422b8
tetradecimal (14) caa20
pentadecimal (15) 9a49a

As an angle

490,420° = 1,362 × 360° + 100°
100° ≈ 1.745 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵υϟυκʹ
Chinese
四十九萬零四百二十
Chinese (financial)
肆拾玖萬零肆佰貳拾
In other modern scripts
Eastern Arabic ٤٩٠٤٢٠ Devanagari ४९०४२० Bengali ৪৯০৪২০ Tamil ௪௯௦௪௨௦ Thai ๔๙๐๔๒๐ Tibetan ༤༩༠༤༢༠ Khmer ៤៩០៤២០ Lao ໔໙໐໔໒໐ Burmese ၄၉၀၄၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 490420, here are decompositions:

  • 3 + 490417 = 490420
  • 53 + 490367 = 490420
  • 107 + 490313 = 490420
  • 137 + 490283 = 490420
  • 149 + 490271 = 490420
  • 173 + 490247 = 490420
  • 179 + 490241 = 490420
  • 197 + 490223 = 490420

Showing the first eight; more decompositions exist.

Hex color
#077BB4
RGB(7, 123, 180)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.123.180.

Address
0.7.123.180
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.123.180

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 490,420 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 490420 first appears in π at position 272,023 of the decimal expansion (the 272,023ordinal-suffix:rd 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°.