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1,012,642

1,012,642 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.).

1,012,642 (one million twelve thousand six hundred forty-two) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 89 × 5,689. Written other ways, in hexadecimal, 0xF73A2.

Cube-Free Deficient Number Evil Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
2,462,101
Square (n²)
1,025,443,820,164
Cube (n³)
1,038,407,480,938,513,288
Divisor count
8
σ(n) — sum of divisors
1,536,300
φ(n) — Euler's totient
500,544
Sum of prime factors
5,780

Primality

Prime factorization: 2 × 89 × 5689

Nearest primes: 1,012,637 (−5) · 1,012,657 (+15)

Divisors & multiples

All divisors (8)
1 · 2 · 89 · 178 · 5689 · 11378 · 506321 (half) · 1012642
Aliquot sum (sum of proper divisors): 523,658
Factor pairs (a × b = 1,012,642)
1 × 1012642
2 × 506321
89 × 11378
178 × 5689
First multiples
1,012,642 · 2,025,284 (double) · 3,037,926 · 4,050,568 · 5,063,210 · 6,075,852 · 7,088,494 · 8,101,136 · 9,113,778 · 10,126,420

Sums & aliquot sequence

As a sum of two squares: 121² + 999² = 329² + 951²
As consecutive integers: 253,159 + 253,160 + 253,161 + 253,162 11,334 + 11,335 + … + 11,422 2,667 + 2,668 + … + 3,022
Aliquot sequence: 1,012,642 523,658 269,494 138,314 88,054 44,030 54,466 28,298 14,152 13,748 13,804 16,436 16,492 19,348 19,404 42,840 125,640 — unresolved within range

Continued fraction of √n

√1,012,642 = [1006; (3, 3, 8, 2, 2, 2, 1, 3, 1, 1, 1, 6, 1006, 6, 1, 1, 1, 3, 1, 2, 2, 2, 8, 3, …)]

Period length 26 — the block in parentheses repeats forever.

Representations

In words
one million twelve thousand six hundred forty-two
Ordinal
1012642nd
Binary
11110111001110100010
Octal
3671642
Hexadecimal
0xF73A2
Base64
D3Oi
One's complement
4,293,954,653 (32-bit)
Scientific notation
1.012642 × 10⁶
As a duration
1,012,642 s = 11 days, 17 hours, 17 minutes, 22 seconds
In other bases
ternary (3) 1220110002021
quaternary (4) 3313032202
quinary (5) 224401032
senary (6) 33412054
septenary (7) 11415211
nonary (9) 1813067
undecimal (11) 6318a4
duodecimal (12) 40a02a
tridecimal (13) 295bc7
tetradecimal (14) 1c5078
pentadecimal (15) 150097

As an angle

1,012,642° = 2,812 × 360° + 322°
322° ≈ 5.62 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零一萬二千六百四十二
Chinese (financial)
壹佰零壹萬貳仟陸佰肆拾貳
In other modern scripts
Eastern Arabic ١٠١٢٦٤٢ Devanagari १०१२६४२ Bengali ১০১২৬৪২ Tamil ௧௦௧௨௬௪௨ Thai ๑๐๑๒๖๔๒ Tibetan ༡༠༡༢༦༤༢ Khmer ១០១២៦៤២ Lao ໑໐໑໒໖໔໒ Burmese ၁၀၁၂၆၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1012642, here are decompositions:

  • 5 + 1012637 = 1012642
  • 11 + 1012631 = 1012642
  • 23 + 1012619 = 1012642
  • 41 + 1012601 = 1012642
  • 83 + 1012559 = 1012642
  • 179 + 1012463 = 1012642
  • 263 + 1012379 = 1012642
  • 269 + 1012373 = 1012642

Showing the first eight; more decompositions exist.

Hex color
#0F73A2
RGB(15, 115, 162)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.115.162.

Address
0.15.115.162
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.115.162

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 1, 2642 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 2642-10-01 (MMDYYYY (US, single-digit day))
  • 2642-01-10 (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 1,012,642 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°.