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1,000,420

1,000,420 is a composite number, even.

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.).

1,000,420 (one million four hundred twenty) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2² × 5 × 50,021. Its proper divisors sum to 1,100,504, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF43E4.

Abundant Number Arithmetic Number Cube-Free Gapful Number Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
7
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
240,001
Square (n²)
1,000,840,176,400
Cube (n³)
1,001,260,529,274,088,000
Divisor count
12
σ(n) — sum of divisors
2,100,924
φ(n) — Euler's totient
400,160
Sum of prime factors
50,030

Primality

Prime factorization: 2 2 × 5 × 50021

Nearest primes: 1,000,409 (−11) · 1,000,423 (+3)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 5 · 10 · 20 · 50021 · 100042 · 200084 · 250105 · 500210 (half) · 1000420
Aliquot sum (sum of proper divisors): 1,100,504
Factor pairs (a × b = 1,000,420)
1 × 1000420
2 × 500210
4 × 250105
5 × 200084
10 × 100042
20 × 50021
First multiples
1,000,420 · 2,000,840 (double) · 3,001,260 · 4,001,680 · 5,002,100 · 6,002,520 · 7,002,940 · 8,003,360 · 9,003,780 · 10,004,200

Sums & aliquot sequence

As a sum of two squares: 168² + 986² = 688² + 726²
As consecutive integers: 200,082 + 200,083 + 200,084 + 200,085 + 200,086 125,049 + 125,050 + … + 125,056 24,991 + 24,992 + … + 25,030
Aliquot sequence: 1,000,420 1,100,504 1,053,016 921,404 882,244 802,124 677,284 507,970 419,390 380,242 190,124 187,876 166,296 294,864 466,992 961,488 1,978,800 — unresolved within range

Continued fraction of √n

√1,000,420 = [1000; (4, 1, 3, 4, 1, 3, 1, 2, 1, 1, 1, 6, 2, 2, 3, 1, 20, 15, 2, 5, 1, 1, 2, 10, …)]

Representations

In words
one million four hundred twenty
Ordinal
1000420th
Binary
11110100001111100100
Octal
3641744
Hexadecimal
0xF43E4
Base64
D0Pk
One's complement
4,293,966,875 (32-bit)
Scientific notation
1.00042 × 10⁶
As a duration
1,000,420 s = 11 days, 13 hours, 53 minutes, 40 seconds
In other bases
ternary (3) 1212211022121
quaternary (4) 3310033210
quinary (5) 224003140
senary (6) 33235324
septenary (7) 11334451
nonary (9) 1784277
undecimal (11) 6236a3
duodecimal (12) 402b44
tridecimal (13) 290485
tetradecimal (14) 1c0828
pentadecimal (15) 14b64a

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百萬零四百二十
Chinese (financial)
壹佰萬零肆佰貳拾
In other modern scripts
Eastern Arabic ١٠٠٠٤٢٠ Devanagari १०००४२० Bengali ১০০০৪২০ Tamil ௧௦௦௦௪௨௦ Thai ๑๐๐๐๔๒๐ Tibetan ༡༠༠༠༤༢༠ Khmer ១០០០៤២០ Lao ໑໐໐໐໔໒໐ Burmese ၁၀၀၀၄၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1000420, here are decompositions:

  • 11 + 1000409 = 1000420
  • 17 + 1000403 = 1000420
  • 23 + 1000397 = 1000420
  • 53 + 1000367 = 1000420
  • 107 + 1000313 = 1000420
  • 131 + 1000289 = 1000420
  • 167 + 1000253 = 1000420
  • 227 + 1000193 = 1000420

Showing the first eight; more decompositions exist.

Hex color
#0F43E4
RGB(15, 67, 228)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.67.228.

Address
0.15.67.228
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.67.228

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 1,000,420 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

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.