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1,055,531

1,055,531 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.).

1,055,531 (one million fifty-five thousand five hundred thirty-one) is an odd 7-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x101B2B.

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

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
21 bits
Reversed
1,355,501
Square (n²)
1,114,145,691,961
Cube (n³)
1,176,015,316,381,286,291
Divisor count
2
σ(n) — sum of divisors
1,055,532
φ(n) — Euler's totient
1,055,530

Primality

1,055,531 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1055531
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,055,531)
1 × 1055531
First multiples
1,055,531 · 2,111,062 (double) · 3,166,593 · 4,222,124 · 5,277,655 · 6,333,186 · 7,388,717 · 8,444,248 · 9,499,779 · 10,555,310

Sums & aliquot sequence

As consecutive integers: 527,765 + 527,766

Continued fraction of √n

√1,055,531 = [1027; (2, 1, 1, 3, 1, 1, 3, 1, 2, 2, 1, 4, 5, 1, 204, 1, 1, 1, 3, 2, 1, 4, 2, 7, …)]

Representations

In words
one million fifty-five thousand five hundred thirty-one
Ordinal
1055531st
Binary
100000001101100101011
Octal
4015453
Hexadecimal
0x101B2B
Base64
EBsr
One's complement
4,293,911,764 (32-bit)
Scientific notation
1.055531 × 10⁶
As a duration
1,055,531 s = 12 days, 5 hours, 12 minutes, 11 seconds
In other bases
ternary (3) 1222121220202
quaternary (4) 10001230223
quinary (5) 232234111
senary (6) 34342415
septenary (7) 11654231
nonary (9) 1877822
undecimal (11) 661044
duodecimal (12) 42aa0b
tridecimal (13) 2ac599
tetradecimal (14) 1d6951
pentadecimal (15) 15cb3b

As an angle

1,055,531° = 2,932 × 360° + 11°
11° ≈ 0.192 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹 𒌋𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺
Chinese
一百零五萬五千五百三十一
Chinese (financial)
壹佰零伍萬伍仟伍佰參拾壹
In other modern scripts
Eastern Arabic ١٠٥٥٥٣١ Devanagari १०५५५३१ Bengali ১০৫৫৫৩১ Tamil ௧௦௫௫௫௩௧ Thai ๑๐๕๕๕๓๑ Tibetan ༡༠༥༥༥༣༡ Khmer ១០៥៥៥៣១ Lao ໑໐໕໕໕໓໑ Burmese ၁၀၅၅၅၃၁

Also seen as

Prime neighborhood

Adjacent primes:

Hex color
#101B2B
RGB(16, 27, 43)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.27.43.

Address
0.16.27.43
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.27.43

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 5, 5531 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5531-05-01 (DMMYYYY (Euro, single-digit day))
  • 5531-10-05 (MMDYYYY (US, single-digit day))
  • 5531-05-10 (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 1,055,531 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.