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1,026,991

1,026,991 is a composite number, odd.

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.).

1,026,991 (one million twenty-six thousand nine hundred ninety-one) is an odd 7-digit number. It is a composite number with 6 divisors, and factors as 7² × 20,959. Written other ways, in hexadecimal, 0xFABAF.

Arithmetic Number Cube-Free Deficient Number Odious Number

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
28
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
1,996,201
Square (n²)
1,054,710,514,081
Cube (n³)
1,083,178,205,566,560,271
Divisor count
6
σ(n) — sum of divisors
1,194,720
φ(n) — Euler's totient
880,236
Sum of prime factors
20,973

Primality

Prime factorization: 7 2 × 20959

Nearest primes: 1,026,989 (−2) · 1,027,001 (+10)

Divisors & multiples

All divisors (6)
1 · 7 · 49 · 20959 · 146713 · 1026991
Aliquot sum (sum of proper divisors): 167,729
Factor pairs (a × b = 1,026,991)
1 × 1026991
7 × 146713
49 × 20959
First multiples
1,026,991 · 2,053,982 (double) · 3,080,973 · 4,107,964 · 5,134,955 · 6,161,946 · 7,188,937 · 8,215,928 · 9,242,919 · 10,269,910

Sums & aliquot sequence

As consecutive integers: 513,495 + 513,496 146,710 + 146,711 + … + 146,716 73,350 + 73,351 + … + 73,363 20,935 + 20,936 + … + 20,983
Aliquot sequence: 1,026,991 167,729 1 0 — terminates at zero

Continued fraction of √n

√1,026,991 = [1013; (2, 2, 6, 1, 2, 5, 4, 1, 9, 1, 1, 2, 2, 1, 1, 1, 1, 5, 1, 1, 8, 3, 1, 2, …)]

Representations

In words
one million twenty-six thousand nine hundred ninety-one
Ordinal
1026991st
Binary
11111010101110101111
Octal
3725657
Hexadecimal
0xFABAF
Base64
D6uv
One's complement
4,293,940,304 (32-bit)
Scientific notation
1.026991 × 10⁶
As a duration
1,026,991 s = 11 days, 21 hours, 16 minutes, 31 seconds
In other bases
ternary (3) 1221011202201
quaternary (4) 3322232233
quinary (5) 230330431
senary (6) 34002331
septenary (7) 11505100
nonary (9) 1834681
undecimal (11) 641659
duodecimal (12) 4163a7
tridecimal (13) 29c5b4
tetradecimal (14) 1ca3a7
pentadecimal (15) 154461
Palindromic in base 16

As an angle

1,026,991° = 2,852 × 360° + 271°
271° ≈ 4.73 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Chinese
一百零二萬六千九百九十一
Chinese (financial)
壹佰零貳萬陸仟玖佰玖拾壹
In other modern scripts
Eastern Arabic ١٠٢٦٩٩١ Devanagari १०२६९९१ Bengali ১০২৬৯৯১ Tamil ௧௦௨௬௯௯௧ Thai ๑๐๒๖๙๙๑ Tibetan ༡༠༢༦༩༩༡ Khmer ១០២៦៩៩១ Lao ໑໐໒໖໙໙໑ Burmese ၁၀၂၆၉၉၁

Also seen as

Hex color
#0FABAF
RGB(15, 171, 175)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.171.175.

Address
0.15.171.175
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.171.175

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 2, 6991 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 6991-02-01 (DMMYYYY (Euro, single-digit day))
  • 6991-10-02 (MMDYYYY (US, single-digit day))
  • 6991-02-10 (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 1,026,991 and was likely granted around 1912.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading