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1,022,442

1,022,442 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.).

1,022,442 (one million twenty-two thousand four hundred forty-two) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2 × 3 × 23 × 31 × 239. Its proper divisors sum to 1,189,398, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF99EA.

Abundant Number Arithmetic Number Cube-Free Odious Number Pernicious Number Recamán's Sequence Semiperfect Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
2,442,201
Recamán's sequence
a(371,443) = 1,022,442
Square (n²)
1,045,387,643,364
Cube (n³)
1,068,848,232,856,374,888
Divisor count
32
σ(n) — sum of divisors
2,211,840
φ(n) — Euler's totient
314,160
Sum of prime factors
298

Primality

Prime factorization: 2 × 3 × 23 × 31 × 239

Nearest primes: 1,022,429 (−13) · 1,022,443 (+1)

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 6 · 23 · 31 · 46 · 62 · 69 · 93 · 138 · 186 · 239 · 478 · 713 · 717 · 1426 · 1434 · 2139 · 4278 · 5497 · 7409 · 10994 · 14818 · 16491 · 22227 · 32982 · 44454 · 170407 · 340814 · 511221 (half) · 1022442
Aliquot sum (sum of proper divisors): 1,189,398
Factor pairs (a × b = 1,022,442)
1 × 1022442
2 × 511221
3 × 340814
6 × 170407
23 × 44454
31 × 32982
46 × 22227
62 × 16491
69 × 14818
93 × 10994
138 × 7409
186 × 5497
239 × 4278
478 × 2139
713 × 1434
717 × 1426
First multiples
1,022,442 · 2,044,884 (double) · 3,067,326 · 4,089,768 · 5,112,210 · 6,134,652 · 7,157,094 · 8,179,536 · 9,201,978 · 10,224,420

Sums & aliquot sequence

As consecutive integers: 340,813 + 340,814 + 340,815 255,609 + 255,610 + 255,611 + 255,612 85,198 + 85,199 + … + 85,209 44,443 + 44,444 + … + 44,465
Aliquot sequence: 1,022,442 1,189,398 1,529,322 1,529,334 1,911,306 1,925,142 1,938,858 2,005,302 2,413,770 3,478,710 5,852,490 11,306,550 16,734,066 16,734,078 19,523,130 32,413,638 32,674,938 — unresolved within range

Continued fraction of √n

√1,022,442 = [1011; (6, 3, 2, 1, 22, 41, 4, 2, 1, 1, 3, 1, 13, 1, 47, 4, 1, 1, 2, 2, 2, 2, 2, 1, …)]

Period length 42 — the block in parentheses repeats forever.

Representations

In words
one million twenty-two thousand four hundred forty-two
Ordinal
1022442nd
Binary
11111001100111101010
Octal
3714752
Hexadecimal
0xF99EA
Base64
D5nq
One's complement
4,293,944,853 (32-bit)
Scientific notation
1.022442 × 10⁶
As a duration
1,022,442 s = 11 days, 20 hours, 42 seconds
In other bases
ternary (3) 1220221112020
quaternary (4) 3321213222
quinary (5) 230204232
senary (6) 33525310
septenary (7) 11455611
nonary (9) 1827466
undecimal (11) 6391a3
duodecimal (12) 413836
tridecimal (13) 29a4c5
tetradecimal (14) 1c8878
pentadecimal (15) 152e2c

As an angle

1,022,442° = 2,840 × 360° + 42°
42° ≈ 0.733 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 · 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零二萬二千四百四十二
Chinese (financial)
壹佰零貳萬貳仟肆佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٢٢٤٤٢ Devanagari १०२२४४२ Bengali ১০২২৪৪২ Tamil ௧௦௨௨௪௪௨ Thai ๑๐๒๒๔๔๒ Tibetan ༡༠༢༢༤༤༢ Khmer ១០២២៤៤២ Lao ໑໐໒໒໔໔໒ Burmese ၁၀၂၂၄၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1022442, here are decompositions:

  • 13 + 1022429 = 1022442
  • 53 + 1022389 = 1022442
  • 59 + 1022383 = 1022442
  • 61 + 1022381 = 1022442
  • 101 + 1022341 = 1022442
  • 139 + 1022303 = 1022442
  • 151 + 1022291 = 1022442
  • 191 + 1022251 = 1022442

Showing the first eight; more decompositions exist.

Hex color
#0F99EA
RGB(15, 153, 234)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.153.234.

Address
0.15.153.234
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.153.234

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 2, 2442 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2442-02-01 (DMMYYYY (Euro, single-digit day))
  • 2442-10-02 (MMDYYYY (US, single-digit day))
  • 2442-02-10 (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 1,022,442 and was likely granted around 1912.

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°.