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1,001,378

1,001,378 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.).

1,001,378 (one million one thousand three hundred seventy-eight) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 7 × 71,527. Written other ways, in hexadecimal, 0xF47A2.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
8,731,001
Square (n²)
1,002,757,898,884
Cube (n³)
1,004,139,699,268,662,152
Divisor count
8
σ(n) — sum of divisors
1,716,672
φ(n) — Euler's totient
429,156
Sum of prime factors
71,536

Primality

Prime factorization: 2 × 7 × 71527

Nearest primes: 1,001,369 (−9) · 1,001,381 (+3)

Divisors & multiples

All divisors (8)
1 · 2 · 7 · 14 · 71527 · 143054 · 500689 (half) · 1001378
Aliquot sum (sum of proper divisors): 715,294
Factor pairs (a × b = 1,001,378)
1 × 1001378
2 × 500689
7 × 143054
14 × 71527
First multiples
1,001,378 · 2,002,756 (double) · 3,004,134 · 4,005,512 · 5,006,890 · 6,008,268 · 7,009,646 · 8,011,024 · 9,012,402 · 10,013,780

Sums & aliquot sequence

As consecutive integers: 250,343 + 250,344 + 250,345 + 250,346 143,051 + 143,052 + … + 143,057 35,750 + 35,751 + … + 35,777
Aliquot sequence: 1,001,378 715,294 413,666 263,278 131,642 94,054 59,162 29,584 29,099 4,165 1,991 193 1 0 — terminates at zero

Continued fraction of √n

√1,001,378 = [1000; (1, 2, 4, 1, 2, 3, 1, 1, 3, 1, 1, 2, 9, 1, 2, 1000, 2, 1, 9, 2, 1, 1, 3, 1, …)]

Period length 32 — the block in parentheses repeats forever.

Representations

In words
one million one thousand three hundred seventy-eight
Ordinal
1001378th
Binary
11110100011110100010
Octal
3643642
Hexadecimal
0xF47A2
Base64
D0ei
One's complement
4,293,965,917 (32-bit)
Scientific notation
1.001378 × 10⁶
As a duration
1,001,378 s = 11 days, 14 hours, 9 minutes, 38 seconds
In other bases
ternary (3) 1212212122002
quaternary (4) 3310132202
quinary (5) 224021003
senary (6) 33244002
septenary (7) 11340320
nonary (9) 1785562
undecimal (11) 624394
duodecimal (12) 403602
tridecimal (13) 290a41
tetradecimal (14) 1c0d10
pentadecimal (15) 14ba88

As an angle

1,001,378° = 2,781 × 360° + 218°
218° ≈ 3.805 rad

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百萬一千三百七十八
Chinese (financial)
壹佰萬壹仟參佰柒拾捌
In other modern scripts
Eastern Arabic ١٠٠١٣٧٨ Devanagari १००१३७८ Bengali ১০০১৩৭৮ Tamil ௧௦௦௧௩௭௮ Thai ๑๐๐๑๓๗๘ Tibetan ༡༠༠༡༣༧༨ Khmer ១០០១៣៧៨ Lao ໑໐໐໑໓໗໘ Burmese ၁၀၀၁၃၇၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1001378, here are decompositions:

  • 31 + 1001347 = 1001378
  • 67 + 1001311 = 1001378
  • 181 + 1001197 = 1001378
  • 271 + 1001107 = 1001378
  • 337 + 1001041 = 1001378
  • 379 + 1000999 = 1001378
  • 397 + 1000981 = 1001378
  • 409 + 1000969 = 1001378

Showing the first eight; more decompositions exist.

Hex color
#0F47A2
RGB(15, 71, 162)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.71.162.

Address
0.15.71.162
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.71.162

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 1,001,378 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°.