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1,001,690

1,001,690 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.).

1,001,690 (one million one thousand six hundred ninety) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 5 × 100,169. Written other ways, in hexadecimal, 0xF48DA.

Cube-Free Deficient Number Flippable Gapful Number Odious Number Pernicious Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
20 bits
Reversed
961,001
Flips to (rotate 180°)
691,001
Square (n²)
1,003,382,856,100
Cube (n³)
1,005,078,573,126,809,000
Divisor count
8
σ(n) — sum of divisors
1,803,060
φ(n) — Euler's totient
400,672
Sum of prime factors
100,176

Primality

Prime factorization: 2 × 5 × 100169

Nearest primes: 1,001,687 (−3) · 1,001,713 (+23)

Divisors & multiples

All divisors (8)
1 · 2 · 5 · 10 · 100169 · 200338 · 500845 (half) · 1001690
Aliquot sum (sum of proper divisors): 801,370
Factor pairs (a × b = 1,001,690)
1 × 1001690
2 × 500845
5 × 200338
10 × 100169
First multiples
1,001,690 · 2,003,380 (double) · 3,005,070 · 4,006,760 · 5,008,450 · 6,010,140 · 7,011,830 · 8,013,520 · 9,015,210 · 10,016,900

Sums & aliquot sequence

As a sum of two squares: 401² + 917² = 493² + 871²
As consecutive integers: 250,421 + 250,422 + 250,423 + 250,424 200,336 + 200,337 + 200,338 + 200,339 + 200,340 50,075 + 50,076 + … + 50,094
Aliquot sequence: 1,001,690 801,370 654,758 402,970 335,750 338,170 357,638 178,822 134,810 146,422 74,978 37,492 44,044 60,228 114,492 208,068 347,004 — unresolved within range

Continued fraction of √n

√1,001,690 = [1000; (1, 5, 2, 3, 2, 5, 7, 4, 1, 16, 64, 1, 1, 21, 1, 76, 30, 1, 3, 1, 1, 2, 4, 1, …)]

Representations

In words
one million one thousand six hundred ninety
Ordinal
1001690th
Binary
11110100100011011010
Octal
3644332
Hexadecimal
0xF48DA
Base64
D0ja
One's complement
4,293,965,605 (32-bit)
Scientific notation
1.00169 × 10⁶
As a duration
1,001,690 s = 11 days, 14 hours, 14 minutes, 50 seconds
In other bases
ternary (3) 1212220001122
quaternary (4) 3310203122
quinary (5) 224023230
senary (6) 33245242
septenary (7) 11341244
nonary (9) 1786048
undecimal (11) 624648
duodecimal (12) 403822
tridecimal (13) 290c21
tetradecimal (14) 1c1094
pentadecimal (15) 14bbe5

As an angle

1,001,690° = 2,782 × 360° + 170°
170° ≈ 2.967 rad
Compass bearing: S (south)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百萬一千六百九十
Chinese (financial)
壹佰萬壹仟陸佰玖拾
In other modern scripts
Eastern Arabic ١٠٠١٦٩٠ Devanagari १००१६९० Bengali ১০০১৬৯০ Tamil ௧௦௦௧௬௯௦ Thai ๑๐๐๑๖๙๐ Tibetan ༡༠༠༡༦༩༠ Khmer ១០០១៦៩០ Lao ໑໐໐໑໖໙໐ Burmese ၁၀၀၁၆၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1001690, here are decompositions:

  • 3 + 1001687 = 1001690
  • 7 + 1001683 = 1001690
  • 31 + 1001659 = 1001690
  • 61 + 1001629 = 1001690
  • 97 + 1001593 = 1001690
  • 103 + 1001587 = 1001690
  • 127 + 1001563 = 1001690
  • 139 + 1001551 = 1001690

Showing the first eight; more decompositions exist.

Hex color
#0F48DA
RGB(15, 72, 218)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.72.218.

Address
0.15.72.218
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.72.218

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 1,001,690 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°.