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1,051,481

1,051,481 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.).

1,051,481 (one million fifty-one thousand four hundred eighty-one) is an odd 7-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x100B59.

Arithmetic Number Chen Prime Cube-Free Deficient Number Evil Number Prime Pythagorean 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
1,841,501
Square (n²)
1,105,612,293,361
Cube (n³)
1,162,530,319,835,517,641
Divisor count
2
σ(n) — sum of divisors
1,051,482
φ(n) — Euler's totient
1,051,480

Primality

1,051,481 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1051481
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,051,481)
1 × 1051481
First multiples
1,051,481 · 2,102,962 (double) · 3,154,443 · 4,205,924 · 5,257,405 · 6,308,886 · 7,360,367 · 8,411,848 · 9,463,329 · 10,514,810

Sums & aliquot sequence

As a sum of two squares: 560² + 859²
As consecutive integers: 525,740 + 525,741

Continued fraction of √n

√1,051,481 = [1025; (2, 2, 1, 1, 7, 1, 409, 3, 1, 1, 8, 1, 1, 1, 2, 81, 1, 1, 1, 10, 2, 12, 2, 1, …)]

Representations

In words
one million fifty-one thousand four hundred eighty-one
Ordinal
1051481st
Binary
100000000101101011001
Octal
4005531
Hexadecimal
0x100B59
Base64
EAtZ
One's complement
4,293,915,814 (32-bit)
Scientific notation
1.051481 × 10⁶
As a duration
1,051,481 s = 12 days, 4 hours, 4 minutes, 41 seconds
In other bases
ternary (3) 1222102100202
quaternary (4) 10000231121
quinary (5) 232121411
senary (6) 34311545
septenary (7) 11636354
nonary (9) 1872322
undecimal (11) 658aa2
duodecimal (12) 4285b5
tridecimal (13) 2aa7a2
tetradecimal (14) 1d529b
pentadecimal (15) 15b83b

As an angle

1,051,481° = 2,920 × 360° + 281°
281° ≈ 4.904 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Chinese
一百零五萬一千四百八十一
Chinese (financial)
壹佰零伍萬壹仟肆佰捌拾壹
In other modern scripts
Eastern Arabic ١٠٥١٤٨١ Devanagari १०५१४८१ Bengali ১০৫১৪৮১ Tamil ௧௦௫௧௪௮௧ Thai ๑๐๕๑๔๘๑ Tibetan ༡༠༥༡༤༨༡ Khmer ១០៥១៤៨១ Lao ໑໐໕໑໔໘໑ Burmese ၁၀၅၁၄၈၁

Also seen as

Prime neighborhood

Adjacent primes:

Hex color
#100B59
RGB(16, 11, 89)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.11.89.

Address
0.16.11.89
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.11.89

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 5, 1481 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 1481-05-01 (DMMYYYY (Euro, single-digit day))
  • 1481-10-05 (MMDYYYY (US, single-digit day))
  • 1481-05-10 (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 1,051,481 and was likely granted around 1912.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Position in π

The digit sequence 1051481 first appears in π at position 360,836 of the decimal expansion (the 360,836ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

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.