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1,000,644

1,000,644 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.).

1,000,644 (one million six hundred forty-four) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 61 × 1,367. Its proper divisors sum to 1,374,204, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF44C4.

Abundant Number Arithmetic Number Cube-Free Odious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
4,460,001
Square (n²)
1,001,288,414,736
Cube (n³)
1,001,933,244,475,089,984
Divisor count
24
σ(n) — sum of divisors
2,374,848
φ(n) — Euler's totient
327,840
Sum of prime factors
1,435

Primality

Prime factorization: 2 2 × 3 × 61 × 1367

Nearest primes: 1,000,639 (−5) · 1,000,651 (+7)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 12 · 61 · 122 · 183 · 244 · 366 · 732 · 1367 · 2734 · 4101 · 5468 · 8202 · 16404 · 83387 · 166774 · 250161 · 333548 · 500322 (half) · 1000644
Aliquot sum (sum of proper divisors): 1,374,204
Factor pairs (a × b = 1,000,644)
1 × 1000644
2 × 500322
3 × 333548
4 × 250161
6 × 166774
12 × 83387
61 × 16404
122 × 8202
183 × 5468
244 × 4101
366 × 2734
732 × 1367
First multiples
1,000,644 · 2,001,288 (double) · 3,001,932 · 4,002,576 · 5,003,220 · 6,003,864 · 7,004,508 · 8,005,152 · 9,005,796 · 10,006,440

Sums & aliquot sequence

As consecutive integers: 333,547 + 333,548 + 333,549 125,077 + 125,078 + … + 125,084 41,682 + 41,683 + … + 41,705 16,374 + 16,375 + … + 16,434
Aliquot sequence: 1,000,644 1,374,204 2,238,468 3,020,604 4,078,404 7,459,836 10,042,068 13,389,452 11,882,788 8,937,704 7,852,216 6,870,704 7,347,136 7,232,464 7,940,176 8,254,224 18,014,928 — unresolved within range

Continued fraction of √n

√1,000,644 = [1000; (3, 9, 2, 2, 1, 7, 9, 1, 2, 1, 1, 1, 4, 1, 2, 3, 20, 1, 3, 5, 3, 2, 5, 1, …)]

Representations

In words
one million six hundred forty-four
Ordinal
1000644th
Binary
11110100010011000100
Octal
3642304
Hexadecimal
0xF44C4
Base64
D0TE
One's complement
4,293,966,651 (32-bit)
Scientific notation
1.000644 × 10⁶
As a duration
1,000,644 s = 11 days, 13 hours, 57 minutes, 24 seconds
In other bases
ternary (3) 1212211121220
quaternary (4) 3310103010
quinary (5) 224010034
senary (6) 33240340
septenary (7) 11335221
nonary (9) 1784556
undecimal (11) 623887
duodecimal (12) 4030b0
tridecimal (13) 2905c8
tetradecimal (14) 1c0948
pentadecimal (15) 14b749

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Chinese
一百萬零六百四十四
Chinese (financial)
壹佰萬零陸佰肆拾肆
In other modern scripts
Eastern Arabic ١٠٠٠٦٤٤ Devanagari १०००६४४ Bengali ১০০০৬৪৪ Tamil ௧௦௦௦௬௪௪ Thai ๑๐๐๐๖๔๔ Tibetan ༡༠༠༠༦༤༤ Khmer ១០០០៦៤៤ Lao ໑໐໐໐໖໔໔ Burmese ၁၀၀၀၆၄၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1000644, here are decompositions:

  • 5 + 1000639 = 1000644
  • 23 + 1000621 = 1000644
  • 67 + 1000577 = 1000644
  • 97 + 1000547 = 1000644
  • 103 + 1000541 = 1000644
  • 107 + 1000537 = 1000644
  • 137 + 1000507 = 1000644
  • 191 + 1000453 = 1000644

Showing the first eight; more decompositions exist.

Hex color
#0F44C4
RGB(15, 68, 196)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.68.196.

Address
0.15.68.196
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.68.196

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 1,000,644 and was likely granted around 1911.

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

Position in π

The digit sequence 1000644 first appears in π at position 76,536 of the decimal expansion (the 76,536ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

Related reading

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