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1,020,409

1,020,409 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.).

1,020,409 (one million twenty thousand four hundred nine) is an odd 7-digit number. It is a composite number with 8 divisors, and factors as 13 × 53 × 1,481. Written other ways, in hexadecimal, 0xF91F9.

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

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
9,040,201
Square (n²)
1,041,234,527,281
Cube (n³)
1,062,485,082,748,277,929
Divisor count
8
σ(n) — sum of divisors
1,120,392
φ(n) — Euler's totient
923,520
Sum of prime factors
1,547

Primality

Prime factorization: 13 × 53 × 1481

Nearest primes: 1,020,407 (−2) · 1,020,413 (+4)

Divisors & multiples

All divisors (8)
1 · 13 · 53 · 689 · 1481 · 19253 · 78493 · 1020409
Aliquot sum (sum of proper divisors): 99,983
Factor pairs (a × b = 1,020,409)
1 × 1020409
13 × 78493
53 × 19253
689 × 1481
First multiples
1,020,409 · 2,040,818 (double) · 3,061,227 · 4,081,636 · 5,102,045 · 6,122,454 · 7,142,863 · 8,163,272 · 9,183,681 · 10,204,090

Sums & aliquot sequence

As a sum of two squares: 120² + 1,003² = 275² + 972² = 428² + 915² = 680² + 747²
As consecutive integers: 510,204 + 510,205 78,487 + 78,488 + … + 78,499 39,234 + 39,235 + … + 39,259 19,227 + 19,228 + … + 19,279
Aliquot sequence: 1,020,409 99,983 7,705 2,087 1 0 — terminates at zero

Continued fraction of √n

√1,020,409 = [1010; (6, 1, 1, 6, 7, 1, 2, 1, 4, 1, 6, 1, 2, 5, 1, 6, 1, 1, 2, 2, 3, 2, 7, 4, …)]

Representations

In words
one million twenty thousand four hundred nine
Ordinal
1020409th
Binary
11111001000111111001
Octal
3710771
Hexadecimal
0xF91F9
Base64
D5H5
One's complement
4,293,946,886 (32-bit)
Scientific notation
1.020409 × 10⁶
As a duration
1,020,409 s = 11 days, 19 hours, 26 minutes, 49 seconds
In other bases
ternary (3) 1220211201221
quaternary (4) 3321013321
quinary (5) 230123114
senary (6) 33512041
septenary (7) 11446645
nonary (9) 1824657
undecimal (11) 637715
duodecimal (12) 412621
tridecimal (13) 2995c0
tetradecimal (14) 1c7c25
pentadecimal (15) 152524

As an angle

1,020,409° = 2,834 × 360° + 169°
169° ≈ 2.95 rad
Compass bearing: S (south)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零二萬零四百零九
Chinese (financial)
壹佰零貳萬零肆佰零玖
In other modern scripts
Eastern Arabic ١٠٢٠٤٠٩ Devanagari १०२०४०९ Bengali ১০২০৪০৯ Tamil ௧௦௨௦௪௦௯ Thai ๑๐๒๐๔๐๙ Tibetan ༡༠༢༠༤༠༩ Khmer ១០២០៤០៩ Lao ໑໐໒໐໔໐໙ Burmese ၁၀၂၀၄၀၉

Also seen as

Hex color
#0F91F9
RGB(15, 145, 249)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.145.249.

Address
0.15.145.249
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.145.249

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 2, 0409 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0409-02-01 (DMMYYYY (Euro, single-digit day))
  • 0409-10-02 (MMDYYYY (US, single-digit day))
  • 0409-02-10 (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 1,020,409 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