Live analysis

1,021,005

1,021,005 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.).

1,021,005 (one million twenty-one thousand five) is an odd 7-digit number. It is a composite number with 20 divisors, and factors as 3⁴ × 5 × 2,521. Written other ways, in hexadecimal, 0xF944D.

Deficient Number Gapful Number Happy Number Harshad / Niven Odious Number Pernicious Number

Interestingness

★ ☆ ☆ ☆ ☆

3 notable facts · grade F

1,020,993 1,020,994 1,020,995 1,020,996 1,020,997 1,020,998 1,020,999 1,021,000 1,021,001 1,021,002 1,021,003 1,021,004 1,021,005 1,021,006 1,021,007 1,021,008 1,021,009 1,021,010 1,021,011 1,021,012 1,021,013 1,021,014 1,021,015 1,021,016 1,021,017

less more

Properties

Parity: Odd
Digit count: 7
Digit sum: 9
Digit product: 0
Digital root: 9
Palindrome: No
Bit width: 20 bits
Reversed: 5,001,201
Square (n²): 1,042,451,210,025
Cube (n³): 1,064,347,897,691,575,125
Divisor count: 20
σ(n) — sum of divisors: 1,830,972
φ(n) — Euler's totient: 544,320
Sum of prime factors: 2,538

Primality

Prime factorization: 3 ⁴ × 5 × 2521

Nearest primes: 1,021,001 (−4) · 1,021,019 (+14)

Divisors & multiples

All divisors (20)

1 · 3 · 5 · 9 · 15 · 27 · 45 · 81 · 135 · 405 · 2521 · 7563 · 12605 · 22689 · 37815 · 68067 · 113445 · 204201 · 340335 · 1021005

Aliquot sum (sum of proper divisors): 809,967

Factor pairs (a × b = 1,021,005)

1 × 1021005

3 × 340335

5 × 204201

9 × 113445

15 × 68067

27 × 37815

45 × 22689

81 × 12605

135 × 7563

405 × 2521

First multiples

1,021,005 · 2,042,010 (double) · 3,063,015 · 4,084,020 · 5,105,025 · 6,126,030 · 7,147,035 · 8,168,040 · 9,189,045 · 10,210,050

Sums & aliquot sequence

As a sum of two squares: 306² + 963² = 333² + 954²

As consecutive integers: 510,502 + 510,503 340,334 + 340,335 + 340,336 204,199 + 204,200 + 204,201 + 204,202 + 204,203 170,165 + 170,166 + 170,167 + 170,168 + 170,169 + 170,170

Aliquot sequence: 1,021,005 → 809,967 → 299,329 → 1 → 0 — terminates at zero

Continued fraction of √n

√1,021,005 = [1010; (2, 4, 3, 3, 28, 6, 4, 1, 19, 4, 1, 15, 2, 55, 1, 1, 1, 6, 1, 1, 2, 1, 2, 9, …)]

Period length 52 — the block in parentheses repeats forever.

Representations

In words: one million twenty-one thousand five
Ordinal: 1021005th
Binary: 11111001010001001101
Octal: 3712115
Hexadecimal: 0xF944D
Base64: D5RN
One's complement: 4,293,946,290 (32-bit)
Scientific notation: 1.021005 × 10⁶
As a duration: 1,021,005 s = 11 days, 19 hours, 36 minutes, 45 seconds

In other bases

ternary (3) 1220212120000

quaternary (4) 3321101031

quinary (5) 230133010

senary (6) 33514513

septenary (7) 11451456

nonary (9) 1825500

undecimal (11) 638107

duodecimal (12) 412a39

tridecimal (13) 29995b

tetradecimal (14) 1c812d

pentadecimal (15) 1527c0

As an angle

1,021,005° = 2,836 × 360° + 45°

45° ≈ 0.785 rad

Compass bearing: NE (northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓁨𓂍𓂍𓆼𓏺𓏺𓏺𓏺𓏺
Chinese: 一百零二萬一千零五
Chinese (financial): 壹佰零貳萬壹仟零伍

In other modern scripts

Eastern Arabic ١٠٢١٠٠٥ Devanagari १०२१००५ Bengali ১০২১০০৫ Tamil ௧௦௨௧௦௦௫ Thai ๑๐๒๑๐๐๕ Tibetan ༡༠༢༡༠༠༥ Khmer ១០២១០០៥ Lao ໑໐໒໑໐໐໕ Burmese ၁၀၂၁၀၀၅

Also seen as

Hex color

#0F944D

RGB(15, 148, 77)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.148.77.

Address: 0.15.148.77
Class: reserved
IPv4-mapped IPv6: ::ffff:0.15.148.77

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 2, 1005 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)

1005-02-01 (DMMYYYY (Euro, single-digit day))
1005-10-02 (MMDYYYY (US, single-digit day))
1005-02-10 (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 1,021,005 and was likely granted around 1912.

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

Look up US1,021,005 on Google Patents ↗ Look up on USPTO ↗