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1,056,991

1,056,991 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.).

1,056,991 (one million fifty-six thousand nine hundred ninety-one) is an odd 7-digit number. It is a composite number with 4 divisors, and factors as 13 × 81,307. Written other ways, in hexadecimal, 0x1020DF.

Arithmetic Number Cube-Free Deficient Number Odious Number Semiprime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
31
Digit product
0
Digital root
4
Palindrome
No
Bit width
21 bits
Reversed
1,996,501
Square (n²)
1,117,229,974,081
Cube (n³)
1,180,902,027,533,850,271
Divisor count
4
σ(n) — sum of divisors
1,138,312
φ(n) — Euler's totient
975,672
Sum of prime factors
81,320

Primality

Prime factorization: 13 × 81307

Nearest primes: 1,056,971 (−20) · 1,057,003 (+12)

Divisors & multiples

All divisors (4)
1 · 13 · 81307 · 1056991
Aliquot sum (sum of proper divisors): 81,321
Factor pairs (a × b = 1,056,991)
1 × 1056991
13 × 81307
First multiples
1,056,991 · 2,113,982 (double) · 3,170,973 · 4,227,964 · 5,284,955 · 6,341,946 · 7,398,937 · 8,455,928 · 9,512,919 · 10,569,910

Sums & aliquot sequence

As consecutive integers: 528,495 + 528,496 81,301 + 81,302 + … + 81,313 40,641 + 40,642 + … + 40,666
Aliquot sequence: 1,056,991 → 81,321 → 27,111 → 14,233 → 375 → 249 → 87 → 33 → 15 → 9 → 4 → 3 → 1 → 0 — terminates at zero

Continued fraction of √n

√1,056,991 = [1028; (9, 1, 13, 1, 8, 3, 27, 10, 1, 1, 3, 1, 1, 30, 1, 1, 2, 4, 1, 7, 1, 6, 4, 1, …)]

Representations

In words
one million fifty-six thousand nine hundred ninety-one
Ordinal
1056991st
Binary
100000010000011011111
Octal
4020337
Hexadecimal
0x1020DF
Base64
ECDf
One's complement
4,293,910,304 (32-bit)
Scientific notation
1.056991 × 10⁶
As a duration
1,056,991 s = 12 days, 5 hours, 36 minutes, 31 seconds
In other bases
ternary (3) 1222200220211
quaternary (4) 10002003133
quinary (5) 232310431
senary (6) 34353251
septenary (7) 11661415
nonary (9) 1880824
undecimal (11) 662151
duodecimal (12) 42b827
tridecimal (13) 2b0150
tetradecimal (14) 1d72b5
pentadecimal (15) 15d2b1

As an angle

1,056,991° = 2,936 × 360° + 31°
31° ≈ 0.541 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Chinese
一百零五萬六千九百九十一
Chinese (financial)
壹佰零伍萬陸仟玖佰玖拾壹
In other modern scripts
Eastern Arabic ١٠٥٦٩٩١ Devanagari १०५६९९१ Bengali ১০৫৬৯৯১ Tamil ௧௦௫௬௯௯௧ Thai ๑๐๕๖๙๙๑ Tibetan ༡༠༥༦༩༩༡ Khmer ១០៥៦៩៩១ Lao ໑໐໕໖໙໙໑ Burmese ၁၀၅၆၉၉၁

Also seen as

Hex color
#1020DF
RGB(16, 32, 223)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.32.223.

Address
0.16.32.223
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.32.223

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 5, 6991 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 6991-05-01 (DMMYYYY (Euro, single-digit day))
  • 6991-10-05 (MMDYYYY (US, single-digit day))
  • 6991-05-10 (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 1,056,991 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