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1,020,005

1,020,005 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.).

1,020,005 (one million twenty thousand five) is an odd 7-digit number. It is a composite number with 16 divisors, and factors as 5 × 7 × 151 × 193. Written other ways, in hexadecimal, 0xF9065.

Arithmetic Number Cube-Free Deficient Number Evil Number Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
8
Digit product
0
Digital root
8
Palindrome
No
Bit width
20 bits
Reversed
5,000,201
Square (n²)
1,040,410,200,025
Cube (n³)
1,061,223,606,076,500,125
Divisor count
16
σ(n) — sum of divisors
1,415,424
φ(n) — Euler's totient
691,200
Sum of prime factors
356

Primality

Prime factorization: 5 × 7 × 151 × 193

Nearest primes: 1,020,001 (−4) · 1,020,007 (+2)

Divisors & multiples

All divisors (16)
1 · 5 · 7 · 35 · 151 · 193 · 755 · 965 · 1057 · 1351 · 5285 · 6755 · 29143 · 145715 · 204001 · 1020005
Aliquot sum (sum of proper divisors): 395,419
Factor pairs (a × b = 1,020,005)
1 × 1020005
5 × 204001
7 × 145715
35 × 29143
151 × 6755
193 × 5285
755 × 1351
965 × 1057
First multiples
1,020,005 · 2,040,010 (double) · 3,060,015 · 4,080,020 · 5,100,025 · 6,120,030 · 7,140,035 · 8,160,040 · 9,180,045 · 10,200,050

Sums & aliquot sequence

As consecutive integers: 510,002 + 510,003 203,999 + 204,000 + 204,001 + 204,002 + 204,003 145,712 + 145,713 + … + 145,718 101,996 + 101,997 + … + 102,005
Aliquot sequence: 1,020,005 395,419 10,725 10,107 4,505 1,327 1 0 — terminates at zero

Continued fraction of √n

√1,020,005 = [1009; (1, 20, 3, 1, 4, 5, 2, 1, 1, 2, 19, 1, 1, 1, 1, 2, 2, 1, 1, 2, 3, 1, 4, 2, …)]

Period length 52 — the block in parentheses repeats forever.

Representations

In words
one million twenty thousand five
Ordinal
1020005th
Binary
11111001000001100101
Octal
3710145
Hexadecimal
0xF9065
Base64
D5Bl
One's complement
4,293,947,290 (32-bit)
Scientific notation
1.020005 × 10⁶
As a duration
1,020,005 s = 11 days, 19 hours, 20 minutes, 5 seconds
In other bases
ternary (3) 1220211011222
quaternary (4) 3321001211
quinary (5) 230120010
senary (6) 33510125
septenary (7) 11445530
nonary (9) 1824158
undecimal (11) 637388
duodecimal (12) 412345
tridecimal (13) 29936c
tetradecimal (14) 1c7a17
pentadecimal (15) 152355

As an angle

1,020,005° = 2,833 × 360° + 125°
125° ≈ 2.182 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋 𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓏺𓏺𓏺𓏺𓏺
Chinese
一百零二萬零五
Chinese (financial)
壹佰零貳萬零伍
In other modern scripts
Eastern Arabic ١٠٢٠٠٠٥ Devanagari १०२०००५ Bengali ১০২০০০৫ Tamil ௧௦௨௦௦௦௫ Thai ๑๐๒๐๐๐๕ Tibetan ༡༠༢༠༠༠༥ Khmer ១០២០០០៥ Lao ໑໐໒໐໐໐໕ Burmese ၁၀၂၀၀၀၅

Also seen as

Hex color
#0F9065
RGB(15, 144, 101)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.144.101.

Address
0.15.144.101
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.144.101

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 2, 0005 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0005-02-01 (DMMYYYY (Euro, single-digit day))
  • 0005-10-02 (MMDYYYY (US, single-digit day))
  • 0005-02-10 (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 1,020,005 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