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1,005,481

1,005,481 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.).

1,005,481 (one million five 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, 0xF57A9.

Arithmetic Number Chen Prime Cube-Free Deficient Number Odious Number Pernicious Number Prime Pythagorean Prime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
1,845,001
Square (n²)
1,010,992,041,361
Cube (n³)
1,016,533,288,739,699,641
Divisor count
2
σ(n) — sum of divisors
1,005,482
φ(n) — Euler's totient
1,005,480

Primality

1,005,481 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1005481
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,005,481)
1 × 1005481
First multiples
1,005,481 · 2,010,962 (double) · 3,016,443 · 4,021,924 · 5,027,405 · 6,032,886 · 7,038,367 · 8,043,848 · 9,049,329 · 10,054,810

Sums & aliquot sequence

As a sum of two squares: 460² + 891²
As consecutive integers: 502,740 + 502,741

Continued fraction of √n

√1,005,481 = [1002; (1, 2, 1, 3, 1, 31, 23, 50, 10, 1, 2, 2, 1, 1, 1, 1, 6, 1, 2, 8, 1, 1, 1, 4, …)]

Representations

In words
one million five thousand four hundred eighty-one
Ordinal
1005481st
Binary
11110101011110101001
Octal
3653651
Hexadecimal
0xF57A9
Base64
D1ep
One's complement
4,293,961,814 (32-bit)
Scientific notation
1.005481 × 10⁶
As a duration
1,005,481 s = 11 days, 15 hours, 18 minutes, 1 second
In other bases
ternary (3) 1220002021001
quaternary (4) 3311132221
quinary (5) 224133411
senary (6) 33315001
septenary (7) 11355301
nonary (9) 1802231
undecimal (11) 627484
duodecimal (12) 405a61
tridecimal (13) 292879
tetradecimal (14) 1c2601
pentadecimal (15) 14cdc1

As an angle

1,005,481° = 2,793 × 360° + 1°
1° ≈ 0.017 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Chinese
一百萬五千四百八十一
Chinese (financial)
壹佰萬伍仟肆佰捌拾壹
In other modern scripts
Eastern Arabic ١٠٠٥٤٨١ Devanagari १००५४८१ Bengali ১০০৫৪৮১ Tamil ௧௦௦௫௪௮௧ Thai ๑๐๐๕๔๘๑ Tibetan ༡༠༠༥༤༨༡ Khmer ១០០៥៤៨១ Lao ໑໐໐໕໔໘໑ Burmese ၁၀၀၅၄၈၁

Also seen as

Prime neighborhood

Adjacent primes:

Hex color
#0F57A9
RGB(15, 87, 169)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.87.169.

Address
0.15.87.169
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.87.169

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 1,005,481 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

  • 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.