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1,055,387

1,055,387 is a prime, odd.

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.).

1,055,387 (one million fifty-five thousand three hundred eighty-seven) is an odd 7-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x101A9B.

Arithmetic Number Chen Prime Cube-Free Deficient Number Emirp Odious Number Prime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
29
Digit product
0
Digital root
2
Palindrome
No
Bit width
21 bits
Reversed
7,835,501
Square (n²)
1,113,841,719,769
Cube (n³)
1,175,534,071,101,845,603
Divisor count
2
σ(n) — sum of divisors
1,055,388
φ(n) — Euler's totient
1,055,386

Primality

1,055,387 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1055387
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,055,387)
1 × 1055387
First multiples
1,055,387 · 2,110,774 (double) · 3,166,161 · 4,221,548 · 5,276,935 · 6,332,322 · 7,387,709 · 8,443,096 · 9,498,483 · 10,553,870

Sums & aliquot sequence

As consecutive integers: 527,693 + 527,694

Continued fraction of √n

√1,055,387 = [1027; (3, 8, 5, 4, 1, 12, 1, 54, 1, 1, 1, 1, 11, 1, 2, 2, 1, 3, 3, 1, 1, 1, 12, 1, …)]

Representations

In words
one million fifty-five thousand three hundred eighty-seven
Ordinal
1055387th
Binary
100000001101010011011
Octal
4015233
Hexadecimal
0x101A9B
Base64
EBqb
One's complement
4,293,911,908 (32-bit)
Scientific notation
1.055387 × 10⁶
As a duration
1,055,387 s = 12 days, 5 hours, 9 minutes, 47 seconds
In other bases
ternary (3) 1222121201102
quaternary (4) 10001222123
quinary (5) 232233022
senary (6) 34342015
septenary (7) 11653634
nonary (9) 1877642
undecimal (11) 660a23
duodecimal (12) 42a90b
tridecimal (13) 2ac4b8
tetradecimal (14) 1d688b
pentadecimal (15) 15ca92

As an angle

1,055,387° = 2,931 × 360° + 227°
227° ≈ 3.962 rad
Compass bearing: SW (southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零五萬五千三百八十七
Chinese (financial)
壹佰零伍萬伍仟參佰捌拾柒
In other modern scripts
Eastern Arabic ١٠٥٥٣٨٧ Devanagari १०५५३८७ Bengali ১০৫৫৩৮৭ Tamil ௧௦௫௫௩௮௭ Thai ๑๐๕๕๓๘๗ Tibetan ༡༠༥༥༣༨༧ Khmer ១០៥៥៣៨៧ Lao ໑໐໕໕໓໘໗ Burmese ၁၀၅၅၃၈၇

Also seen as

Prime neighborhood

Adjacent primes:

Hex color
#101A9B
RGB(16, 26, 155)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.26.155.

Address
0.16.26.155
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.26.155

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 5, 5387 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5387-05-01 (DMMYYYY (Euro, single-digit day))
  • 5387-10-05 (MMDYYYY (US, single-digit day))
  • 5387-05-10 (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 1,055,387 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

  • Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
  • Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.