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1,001,805

1,001,805 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.).

1,001,805 (one million one thousand eight hundred five) is an odd 7-digit number. It is a composite number with 48 divisors, and factors as 3 × 5 × 7² × 29 × 47. Written other ways, in hexadecimal, 0xF494D.

Arithmetic Number Cube-Free Deficient Number Gapful Number Happy Number Harshad / Niven Odious Number Pernicious Number

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
5,081,001
Square (n²)
1,003,613,258,025
Cube (n³)
1,005,424,779,955,735,125
Divisor count
48
σ(n) — sum of divisors
1,969,920
φ(n) — Euler's totient
432,768
Sum of prime factors
98

Primality

Prime factorization: 3 × 5 × 7 2 × 29 × 47

Nearest primes: 1,001,801 (−4) · 1,001,807 (+2)

Divisors & multiples

All divisors (48)
1 · 3 · 5 · 7 · 15 · 21 · 29 · 35 · 47 · 49 · 87 · 105 · 141 · 145 · 147 · 203 · 235 · 245 · 329 · 435 · 609 · 705 · 735 · 987 · 1015 · 1363 · 1421 · 1645 · 2303 · 3045 · 4089 · 4263 · 4935 · 6815 · 6909 · 7105 · 9541 · 11515 · 20445 · 21315 · 28623 · 34545 · 47705 · 66787 · 143115 · 200361 · 333935 · 1001805
Aliquot sum (sum of proper divisors): 968,115
Factor pairs (a × b = 1,001,805)
1 × 1001805
3 × 333935
5 × 200361
7 × 143115
15 × 66787
21 × 47705
29 × 34545
35 × 28623
47 × 21315
49 × 20445
87 × 11515
105 × 9541
141 × 7105
145 × 6909
147 × 6815
203 × 4935
235 × 4263
245 × 4089
329 × 3045
435 × 2303
609 × 1645
705 × 1421
735 × 1363
987 × 1015
First multiples
1,001,805 · 2,003,610 (double) · 3,005,415 · 4,007,220 · 5,009,025 · 6,010,830 · 7,012,635 · 8,014,440 · 9,016,245 · 10,018,050

Sums & aliquot sequence

As consecutive integers: 500,902 + 500,903 333,934 + 333,935 + 333,936 200,359 + 200,360 + 200,361 + 200,362 + 200,363 166,965 + 166,966 + 166,967 + 166,968 + 166,969 + 166,970
Aliquot sequence: 1,001,805 968,115 593,133 197,715 171,645 103,011 34,341 11,451 5,253 2,235 1,365 1,323 957 483 285 195 141 — unresolved within range

Continued fraction of √n

√1,001,805 = [1000; (1, 9, 4, 1, 2, 9, 1, 5, 1, 39, 1, 499, 2, 9, 1, 2, 2, 40, 2, 2, 1, 9, 2, 499, …)]

Period length 36 — the block in parentheses repeats forever.

Representations

In words
one million one thousand eight hundred five
Ordinal
1001805th
Binary
11110100100101001101
Octal
3644515
Hexadecimal
0xF494D
Base64
D0lN
One's complement
4,293,965,490 (32-bit)
Scientific notation
1.001805 × 10⁶
As a duration
1,001,805 s = 11 days, 14 hours, 16 minutes, 45 seconds
In other bases
ternary (3) 1212220012220
quaternary (4) 3310211031
quinary (5) 224024210
senary (6) 33245553
septenary (7) 11341500
nonary (9) 1786186
undecimal (11) 624742
duodecimal (12) 4038b9
tridecimal (13) 290cac
tetradecimal (14) 1c1137
pentadecimal (15) 14bc70

As an angle

1,001,805° = 2,782 × 360° + 285°
285° ≈ 4.974 rad
Compass bearing: WNW (west-northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺
Chinese
一百萬一千八百零五
Chinese (financial)
壹佰萬壹仟捌佰零伍
In other modern scripts
Eastern Arabic ١٠٠١٨٠٥ Devanagari १००१८०५ Bengali ১০০১৮০৫ Tamil ௧௦௦௧௮௦௫ Thai ๑๐๐๑๘๐๕ Tibetan ༡༠༠༡༨༠༥ Khmer ១០០១៨០៥ Lao ໑໐໐໑໘໐໕ Burmese ၁၀၀၁၈၀၅

Also seen as

Hex color
#0F494D
RGB(15, 73, 77)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.73.77.

Address
0.15.73.77
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.73.77

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 1,001,805 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