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1,009,090

1,009,090 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.).

1,009,090 (one million nine thousand ninety) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2 × 5 × 19 × 47 × 113. Written other ways, in hexadecimal, 0xF65C2.

Arithmetic Number Cube-Free Deficient Number Flippable Gapful Number Harshad / Niven Odious Number Pernicious Number Recamán's Sequence Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
909,001
Flips to (rotate 180°)
606,001
Recamán's sequence
a(347,271) = 1,009,090
Square (n²)
1,018,262,628,100
Cube (n³)
1,027,518,635,389,429,000
Divisor count
32
σ(n) — sum of divisors
1,969,920
φ(n) — Euler's totient
370,944
Sum of prime factors
186

Primality

Prime factorization: 2 × 5 × 19 × 47 × 113

Nearest primes: 1,009,061 (−29) · 1,009,097 (+7)

Divisors & multiples

All divisors (32)
1 · 2 · 5 · 10 · 19 · 38 · 47 · 94 · 95 · 113 · 190 · 226 · 235 · 470 · 565 · 893 · 1130 · 1786 · 2147 · 4294 · 4465 · 5311 · 8930 · 10622 · 10735 · 21470 · 26555 · 53110 · 100909 · 201818 · 504545 (half) · 1009090
Aliquot sum (sum of proper divisors): 960,830
Factor pairs (a × b = 1,009,090)
1 × 1009090
2 × 504545
5 × 201818
10 × 100909
19 × 53110
38 × 26555
47 × 21470
94 × 10735
95 × 10622
113 × 8930
190 × 5311
226 × 4465
235 × 4294
470 × 2147
565 × 1786
893 × 1130
First multiples
1,009,090 · 2,018,180 (double) · 3,027,270 · 4,036,360 · 5,045,450 · 6,054,540 · 7,063,630 · 8,072,720 · 9,081,810 · 10,090,900

Sums & aliquot sequence

As consecutive integers: 252,271 + 252,272 + 252,273 + 252,274 201,816 + 201,817 + 201,818 + 201,819 + 201,820 53,101 + 53,102 + … + 53,119 50,445 + 50,446 + … + 50,464
Aliquot sequence: 1,009,090 960,830 1,004,770 991,070 944,290 776,150 782,902 391,454 279,634 158,126 79,066 48,698 30,010 24,026 13,018 7,430 5,962 — unresolved within range

Continued fraction of √n

√1,009,090 = [1004; (1, 1, 6, 1, 2, 2, 1, 11, 5, 2, 1, 3, 1, 1, 1, 2, 1, 2, 14, 1, 1, 16, 11, 2, …)]

Representations

In words
one million nine thousand ninety
Ordinal
1009090th
Binary
11110110010111000010
Octal
3662702
Hexadecimal
0xF65C2
Base64
D2XC
One's complement
4,293,958,205 (32-bit)
Scientific notation
1.00909 × 10⁶
As a duration
1,009,090 s = 11 days, 16 hours, 18 minutes, 10 seconds
In other bases
ternary (3) 1220021012201
quaternary (4) 3312113002
quinary (5) 224242330
senary (6) 33343414
septenary (7) 11401645
nonary (9) 1807181
undecimal (11) 62a165
duodecimal (12) 407b6a
tridecimal (13) 2943c4
tetradecimal (14) 1c3a5c
pentadecimal (15) 14deca

As an angle

1,009,090° = 2,803 × 360° + 10°
10° ≈ 0.175 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百萬九千零九十
Chinese (financial)
壹佰萬玖仟零玖拾
In other modern scripts
Eastern Arabic ١٠٠٩٠٩٠ Devanagari १००९०९० Bengali ১০০৯০৯০ Tamil ௧௦௦௯௦௯௦ Thai ๑๐๐๙๐๙๐ Tibetan ༡༠༠༩༠༩༠ Khmer ១០០៩០៩០ Lao ໑໐໐໙໐໙໐ Burmese ၁၀၀၉၀၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1009090, here are decompositions:

  • 29 + 1009061 = 1009090
  • 41 + 1009049 = 1009090
  • 53 + 1009037 = 1009090
  • 83 + 1009007 = 1009090
  • 101 + 1008989 = 1009090
  • 107 + 1008983 = 1009090
  • 167 + 1008923 = 1009090
  • 179 + 1008911 = 1009090

Showing the first eight; more decompositions exist.

Hex color
#0F65C2
RGB(15, 101, 194)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.101.194.

Address
0.15.101.194
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.101.194

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 1,009,090 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°.