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1,018,402

1,018,402 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.).

1,018,402 (one million eighteen thousand four hundred two) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2 × 7 × 11 × 17 × 389. Written other ways, in hexadecimal, 0xF8A22.

Arithmetic Number Cube-Free Deficient Number Happy Number Odious 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
2,048,101
Square (n²)
1,037,142,633,604
Cube (n³)
1,056,228,132,347,580,808
Divisor count
32
σ(n) — sum of divisors
2,021,760
φ(n) — Euler's totient
372,480
Sum of prime factors
426

Primality

Prime factorization: 2 × 7 × 11 × 17 × 389

Nearest primes: 1,018,357 (−45) · 1,018,411 (+9)

Divisors & multiples

All divisors (32)
1 · 2 · 7 · 11 · 14 · 17 · 22 · 34 · 77 · 119 · 154 · 187 · 238 · 374 · 389 · 778 · 1309 · 2618 · 2723 · 4279 · 5446 · 6613 · 8558 · 13226 · 29953 · 46291 · 59906 · 72743 · 92582 · 145486 · 509201 (half) · 1018402
Aliquot sum (sum of proper divisors): 1,003,358
Factor pairs (a × b = 1,018,402)
1 × 1018402
2 × 509201
7 × 145486
11 × 92582
14 × 72743
17 × 59906
22 × 46291
34 × 29953
77 × 13226
119 × 8558
154 × 6613
187 × 5446
238 × 4279
374 × 2723
389 × 2618
778 × 1309
First multiples
1,018,402 · 2,036,804 (double) · 3,055,206 · 4,073,608 · 5,092,010 · 6,110,412 · 7,128,814 · 8,147,216 · 9,165,618 · 10,184,020

Sums & aliquot sequence

As consecutive integers: 254,599 + 254,600 + 254,601 + 254,602 145,483 + 145,484 + … + 145,489 92,577 + 92,578 + … + 92,587 59,898 + 59,899 + … + 59,914
Aliquot sequence: 1,018,402 1,003,358 509,842 258,974 142,114 101,534 50,770 40,634 25,894 17,198 8,602 6,950 6,070 4,874 2,440 3,140 3,496 — unresolved within range

Continued fraction of √n

√1,018,402 = [1009; (6, 3, 2, 14, 3, 3, 22, 1, 8, 1, 5, 3, 1, 2, 118, 2, 1, 3, 5, 1, 8, 1, 22, 3, …)]

Period length 30 — the block in parentheses repeats forever.

Representations

In words
one million eighteen thousand four hundred two
Ordinal
1018402nd
Binary
11111000101000100010
Octal
3705042
Hexadecimal
0xF8A22
Base64
D4oi
One's complement
4,293,948,893 (32-bit)
Scientific notation
1.018402 × 10⁶
As a duration
1,018,402 s = 11 days, 18 hours, 53 minutes, 22 seconds
In other bases
ternary (3) 1220201222121
quaternary (4) 3320220202
quinary (5) 230042102
senary (6) 33454454
septenary (7) 11441050
nonary (9) 1821877
undecimal (11) 636160
duodecimal (12) 41142a
tridecimal (13) 298708
tetradecimal (14) 1c71d0
pentadecimal (15) 151b37

As an angle

1,018,402° = 2,828 × 360° + 322°
322° ≈ 5.62 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓏺𓏺
Chinese
一百零一萬八千四百零二
Chinese (financial)
壹佰零壹萬捌仟肆佰零貳
In other modern scripts
Eastern Arabic ١٠١٨٤٠٢ Devanagari १०१८४०२ Bengali ১০১৮৪০২ Tamil ௧௦௧௮௪௦௨ Thai ๑๐๑๘๔๐๒ Tibetan ༡༠༡༨༤༠༢ Khmer ១០១៨៤០២ Lao ໑໐໑໘໔໐໒ Burmese ၁၀၁၈၄၀၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1018402, here are decompositions:

  • 89 + 1018313 = 1018402
  • 101 + 1018301 = 1018402
  • 131 + 1018271 = 1018402
  • 149 + 1018253 = 1018402
  • 179 + 1018223 = 1018402
  • 293 + 1018109 = 1018402
  • 311 + 1018091 = 1018402
  • 383 + 1018019 = 1018402

Showing the first eight; more decompositions exist.

Hex color
#0F8A22
RGB(15, 138, 34)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.138.34.

Address
0.15.138.34
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.138.34

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 1, 8402 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 8402-10-01 (MMDYYYY (US, single-digit day))
  • 8402-01-10 (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 1,018,402 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°.