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1,022,402

1,022,402 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.).

1,022,402 (one million twenty-two thousand four hundred two) is an even 7-digit number. It is a composite number with 4 divisors, and factors as 2 × 511,201. Written other ways, in hexadecimal, 0xF99C2.

Cube-Free Deficient Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
11
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
2,042,201
Recamán's sequence
a(371,523) = 1,022,402
Square (n²)
1,045,305,849,604
Cube (n³)
1,068,722,791,246,828,808
Divisor count
4
σ(n) — sum of divisors
1,533,606
φ(n) — Euler's totient
511,200
Sum of prime factors
511,203

Primality

Prime factorization: 2 × 511201

Nearest primes: 1,022,389 (−13) · 1,022,429 (+27)

Divisors & multiples

All divisors (4)
1 · 2 · 511201 (half) · 1022402
Aliquot sum (sum of proper divisors): 511,204
Factor pairs (a × b = 1,022,402)
1 × 1022402
2 × 511201
First multiples
1,022,402 · 2,044,804 (double) · 3,067,206 · 4,089,608 · 5,112,010 · 6,134,412 · 7,156,814 · 8,179,216 · 9,201,618 · 10,224,020

Sums & aliquot sequence

As a sum of two squares: 349² + 949²
As consecutive integers: 255,599 + 255,600 + 255,601 + 255,602
Aliquot sequence: 1,022,402 511,204 388,940 427,876 339,464 297,046 172,034 86,020 131,708 111,052 83,296 90,584 96,076 72,064 71,756 53,824 56,793 — unresolved within range

Continued fraction of √n

√1,022,402 = [1011; (7, 5, 10, 2, 1, 1, 5, 2, 5, 1, 1, 9, 1, 7, 2, 17, 2, 2, 1, 7, 4, 43, 1, 2, …)]

Representations

In words
one million twenty-two thousand four hundred two
Ordinal
1022402nd
Binary
11111001100111000010
Octal
3714702
Hexadecimal
0xF99C2
Base64
D5nC
One's complement
4,293,944,893 (32-bit)
Scientific notation
1.022402 × 10⁶
As a duration
1,022,402 s = 11 days, 20 hours, 2 seconds
In other bases
ternary (3) 1220221110202
quaternary (4) 3321213002
quinary (5) 230204102
senary (6) 33525202
septenary (7) 11455523
nonary (9) 1827422
undecimal (11) 639167
duodecimal (12) 413802
tridecimal (13) 29a494
tetradecimal (14) 1c884a
pentadecimal (15) 152e02

As an angle

1,022,402° = 2,840 × 360° + 2°
2° ≈ 0.035 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 · 𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓏺𓏺
Chinese
一百零二萬二千四百零二
Chinese (financial)
壹佰零貳萬貳仟肆佰零貳
In other modern scripts
Eastern Arabic ١٠٢٢٤٠٢ Devanagari १०२२४०२ Bengali ১০২২৪০২ Tamil ௧௦௨௨௪௦௨ Thai ๑๐๒๒๔๐๒ Tibetan ༡༠༢༢༤༠༢ Khmer ១០២២៤០២ Lao ໑໐໒໒໔໐໒ Burmese ၁၀၂၂၄၀၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1022402, here are decompositions:

  • 13 + 1022389 = 1022402
  • 19 + 1022383 = 1022402
  • 61 + 1022341 = 1022402
  • 151 + 1022251 = 1022402
  • 193 + 1022209 = 1022402
  • 211 + 1022191 = 1022402
  • 223 + 1022179 = 1022402
  • 331 + 1022071 = 1022402

Showing the first eight; more decompositions exist.

Hex color
#0F99C2
RGB(15, 153, 194)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.153.194.

Address
0.15.153.194
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.153.194

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 2, 2402 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2402-02-01 (DMMYYYY (Euro, single-digit day))
  • 2402-10-02 (MMDYYYY (US, single-digit day))
  • 2402-02-10 (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 1,022,402 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°.