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1,001,290

1,001,290 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.).

1,001,290 (one million one thousand two hundred ninety) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 5 × 100,129. Written other ways, in hexadecimal, 0xF474A.

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

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
921,001
Square (n²)
1,002,581,664,100
Cube (n³)
1,003,874,994,446,689,000
Divisor count
8
σ(n) — sum of divisors
1,802,340
φ(n) — Euler's totient
400,512
Sum of prime factors
100,136

Primality

Prime factorization: 2 × 5 × 100129

Nearest primes: 1,001,279 (−11) · 1,001,291 (+1)

Divisors & multiples

All divisors (8)
1 · 2 · 5 · 10 · 100129 · 200258 · 500645 (half) · 1001290
Aliquot sum (sum of proper divisors): 801,050
Factor pairs (a × b = 1,001,290)
1 × 1001290
2 × 500645
5 × 200258
10 × 100129
First multiples
1,001,290 · 2,002,580 (double) · 3,003,870 · 4,005,160 · 5,006,450 · 6,007,740 · 7,009,030 · 8,010,320 · 9,011,610 · 10,012,900

Sums & aliquot sequence

As a sum of two squares: 207² + 979² = 659² + 753²
As consecutive integers: 250,321 + 250,322 + 250,323 + 250,324 200,256 + 200,257 + 200,258 + 200,259 + 200,260 50,055 + 50,056 + … + 50,074
Aliquot sequence: 1,001,290 801,050 732,706 450,938 254,950 219,350 202,498 104,510 110,626 55,316 41,494 20,750 18,562 9,284 8,524 6,400 9,441 — unresolved within range

Continued fraction of √n

√1,001,290 = [1000; (1, 1, 1, 4, 2, 2, 2, 1, 2, 1, 1, 1, 1, 1, 8, 1, 21, 2, 1, 14, 1, 5, 2, 1, …)]

Representations

In words
one million one thousand two hundred ninety
Ordinal
1001290th
Binary
11110100011101001010
Octal
3643512
Hexadecimal
0xF474A
Base64
D0dK
One's complement
4,293,966,005 (32-bit)
Scientific notation
1.00129 × 10⁶
As a duration
1,001,290 s = 11 days, 14 hours, 8 minutes, 10 seconds
In other bases
ternary (3) 1212212111211
quaternary (4) 3310131022
quinary (5) 224020130
senary (6) 33243334
septenary (7) 11340133
nonary (9) 1785454
undecimal (11) 624314
duodecimal (12) 40354a
tridecimal (13) 2909a4
tetradecimal (14) 1c0c8a
pentadecimal (15) 14ba2a

As an angle

1,001,290° = 2,781 × 360° + 130°
130° ≈ 2.269 rad

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋
Egyptian hieroglyphic
𓁨𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百萬一千二百九十
Chinese (financial)
壹佰萬壹仟貳佰玖拾
In other modern scripts
Eastern Arabic ١٠٠١٢٩٠ Devanagari १००१२९० Bengali ১০০১২৯০ Tamil ௧௦௦௧௨௯௦ Thai ๑๐๐๑๒๙๐ Tibetan ༡༠༠༡༢༩༠ Khmer ១០០១២៩០ Lao ໑໐໐໑໒໙໐ Burmese ၁၀၀၁၂၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1001290, here are decompositions:

  • 11 + 1001279 = 1001290
  • 23 + 1001267 = 1001290
  • 53 + 1001237 = 1001290
  • 71 + 1001219 = 1001290
  • 113 + 1001177 = 1001290
  • 131 + 1001159 = 1001290
  • 137 + 1001153 = 1001290
  • 167 + 1001123 = 1001290

Showing the first eight; more decompositions exist.

Hex color
#0F474A
RGB(15, 71, 74)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.71.74.

Address
0.15.71.74
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.71.74

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 1,001,290 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°.