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1,055,991

1,055,991 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.).

1,055,991 (one million fifty-five thousand nine hundred ninety-one) is an odd 7-digit number. It is a composite number with 8 divisors, and factors as 3 × 131 × 2,687. Written other ways, in hexadecimal, 0x101CF7.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
30
Digit product
0
Digital root
3
Palindrome
No
Bit width
21 bits
Reversed
1,995,501
Square (n²)
1,115,116,992,081
Cube (n³)
1,177,553,507,584,607,271
Divisor count
8
σ(n) — sum of divisors
1,419,264
φ(n) — Euler's totient
698,360
Sum of prime factors
2,821

Primality

Prime factorization: 3 × 131 × 2687

Nearest primes: 1,055,981 (−10) · 1,056,007 (+16)

Divisors & multiples

All divisors (8)
1 · 3 · 131 · 393 · 2687 · 8061 · 351997 · 1055991
Aliquot sum (sum of proper divisors): 363,273
Factor pairs (a × b = 1,055,991)
1 × 1055991
3 × 351997
131 × 8061
393 × 2687
First multiples
1,055,991 · 2,111,982 (double) · 3,167,973 · 4,223,964 · 5,279,955 · 6,335,946 · 7,391,937 · 8,447,928 · 9,503,919 · 10,559,910

Sums & aliquot sequence

As consecutive integers: 527,995 + 527,996 351,996 + 351,997 + 351,998 175,996 + 175,997 + 175,998 + 175,999 + 176,000 + 176,001 7,996 + 7,997 + … + 8,126
Aliquot sequence: 1,055,991 → 363,273 → 152,487 → 67,785 → 40,695 → 24,441 → 8,151 → 5,289 → 2,103 → 705 → 447 → 153 → 81 → 40 → 50 → 43 → 1 — unresolved within range

Continued fraction of √n

√1,055,991 = [1027; (1, 1, 1, 1, 2, 4, 1, 2, 1, 2, 12, 1, 8, 2, 5, 1, 1, 1, 20, 1, 67, 1, 1, 4, …)]

Representations

In words
one million fifty-five thousand nine hundred ninety-one
Ordinal
1055991st
Binary
100000001110011110111
Octal
4016367
Hexadecimal
0x101CF7
Base64
EBz3
One's complement
4,293,911,304 (32-bit)
Scientific notation
1.055991 × 10⁶
As a duration
1,055,991 s = 12 days, 5 hours, 19 minutes, 51 seconds
In other bases
ternary (3) 1222122112210
quaternary (4) 10001303313
quinary (5) 232242431
senary (6) 34344503
septenary (7) 11655456
nonary (9) 1878483
undecimal (11) 661422
duodecimal (12) 42b133
tridecimal (13) 2ac861
tetradecimal (14) 1d6b9d
pentadecimal (15) 15cd46

As an angle

1,055,991° = 2,933 × 360° + 111°
111° ≈ 1.937 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Chinese
一百零五萬五千九百九十一
Chinese (financial)
壹佰零伍萬伍仟玖佰玖拾壹
In other modern scripts
Eastern Arabic ١٠٥٥٩٩١ Devanagari १०५५९९१ Bengali ১০৫৫৯৯১ Tamil ௧௦௫௫௯௯௧ Thai ๑๐๕๕๙๙๑ Tibetan ༡༠༥༥༩༩༡ Khmer ១០៥៥៩៩១ Lao ໑໐໕໕໙໙໑ Burmese ၁၀၅၅၉၉၁

Also seen as

Hex color
#101CF7
RGB(16, 28, 247)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.28.247.

Address
0.16.28.247
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.28.247

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 5, 5991 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5991-05-01 (DMMYYYY (Euro, single-digit day))
  • 5991-10-05 (MMDYYYY (US, single-digit day))
  • 5991-05-10 (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 1,055,991 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