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1,020,490

1,020,490 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.).

1,020,490 (one million twenty thousand four hundred ninety) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2 × 5 × 19 × 41 × 131. Written other ways, in hexadecimal, 0xF924A.

Arithmetic Number Cube-Free Deficient Number Evil Number Gapful Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
940,201
Square (n²)
1,041,399,840,100
Cube (n³)
1,062,738,122,823,649,000
Divisor count
32
σ(n) — sum of divisors
1,995,840
φ(n) — Euler's totient
374,400
Sum of prime factors
198

Primality

Prime factorization: 2 × 5 × 19 × 41 × 131

Nearest primes: 1,020,457 (−33) · 1,020,491 (+1)

Divisors & multiples

All divisors (32)
1 · 2 · 5 · 10 · 19 · 38 · 41 · 82 · 95 · 131 · 190 · 205 · 262 · 410 · 655 · 779 · 1310 · 1558 · 2489 · 3895 · 4978 · 5371 · 7790 · 10742 · 12445 · 24890 · 26855 · 53710 · 102049 · 204098 · 510245 (half) · 1020490
Aliquot sum (sum of proper divisors): 975,350
Factor pairs (a × b = 1,020,490)
1 × 1020490
2 × 510245
5 × 204098
10 × 102049
19 × 53710
38 × 26855
41 × 24890
82 × 12445
95 × 10742
131 × 7790
190 × 5371
205 × 4978
262 × 3895
410 × 2489
655 × 1558
779 × 1310
First multiples
1,020,490 · 2,040,980 (double) · 3,061,470 · 4,081,960 · 5,102,450 · 6,122,940 · 7,143,430 · 8,163,920 · 9,184,410 · 10,204,900

Sums & aliquot sequence

As consecutive integers: 255,121 + 255,122 + 255,123 + 255,124 204,096 + 204,097 + 204,098 + 204,099 + 204,100 53,701 + 53,702 + … + 53,719 51,015 + 51,016 + … + 51,034
Aliquot sequence: 1,020,490 975,350 838,894 599,234 299,620 341,468 287,692 223,364 188,236 141,184 140,336 177,724 136,380 245,652 379,980 773,172 1,231,628 — unresolved within range

Continued fraction of √n

√1,020,490 = [1010; (5, 5, 1, 1, 3, 1, 21, 1, 2, 51, 2, 6, 1, 24, 13, 12, 1, 1, 1, 2, 2, 1, 1, 1, …)]

Representations

In words
one million twenty thousand four hundred ninety
Ordinal
1020490th
Binary
11111001001001001010
Octal
3711112
Hexadecimal
0xF924A
Base64
D5JK
One's complement
4,293,946,805 (32-bit)
Scientific notation
1.02049 × 10⁶
As a duration
1,020,490 s = 11 days, 19 hours, 28 minutes, 10 seconds
In other bases
ternary (3) 1220211211221
quaternary (4) 3321021022
quinary (5) 230123430
senary (6) 33512254
septenary (7) 11450122
nonary (9) 1824757
undecimal (11) 637789
duodecimal (12) 41268a
tridecimal (13) 299653
tetradecimal (14) 1c7c82
pentadecimal (15) 15257a

As an angle

1,020,490° = 2,834 × 360° + 250°
250° ≈ 4.363 rad
Compass bearing: WSW (west-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零二萬零四百九十
Chinese (financial)
壹佰零貳萬零肆佰玖拾
In other modern scripts
Eastern Arabic ١٠٢٠٤٩٠ Devanagari १०२०४९० Bengali ১০২০৪৯০ Tamil ௧௦௨௦௪௯௦ Thai ๑๐๒๐๔๙๐ Tibetan ༡༠༢༠༤༩༠ Khmer ១០២០៤៩០ Lao ໑໐໒໐໔໙໐ Burmese ၁၀၂၀၄၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1020490, here are decompositions:

  • 59 + 1020431 = 1020490
  • 71 + 1020419 = 1020490
  • 83 + 1020407 = 1020490
  • 89 + 1020401 = 1020490
  • 101 + 1020389 = 1020490
  • 137 + 1020353 = 1020490
  • 197 + 1020293 = 1020490
  • 257 + 1020233 = 1020490

Showing the first eight; more decompositions exist.

Hex color
#0F924A
RGB(15, 146, 74)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.146.74.

Address
0.15.146.74
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.146.74

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 2, 0490 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0490-02-01 (DMMYYYY (Euro, single-digit day))
  • 0490-10-02 (MMDYYYY (US, single-digit day))
  • 0490-02-10 (DDMYYYY (Euro, single-digit month))
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 1,020,490 and was likely granted around 1911.

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°.