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1,047,491

1,047,491 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.).

1,047,491 (one million forty-seven thousand four hundred ninety-one) is an odd 7-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xFFBC3.

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

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
26
Digit product
0
Digital root
8
Palindrome
No
Bit width
20 bits
Reversed
1,947,401
Square (n²)
1,097,237,395,081
Cube (n³)
1,149,346,296,210,791,771
Divisor count
2
σ(n) — sum of divisors
1,047,492
φ(n) — Euler's totient
1,047,490

Primality

1,047,491 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1047491
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,047,491)
1 × 1047491
First multiples
1,047,491 · 2,094,982 (double) · 3,142,473 · 4,189,964 · 5,237,455 · 6,284,946 · 7,332,437 · 8,379,928 · 9,427,419 · 10,474,910

Sums & aliquot sequence

As consecutive integers: 523,745 + 523,746

Continued fraction of √n

√1,047,491 = [1023; (2, 7, 1, 5, 1, 8, 1, 1, 2, 1, 2, 3, 2, 1, 4, 1, 4, 1, 1, 2, 1, 3, 2, 1, …)]

Representations

In words
one million forty-seven thousand four hundred ninety-one
Ordinal
1047491st
Binary
11111111101111000011
Octal
3775703
Hexadecimal
0xFFBC3
Base64
D/vD
One's complement
4,293,919,804 (32-bit)
Scientific notation
1.047491 × 10⁶
As a duration
1,047,491 s = 12 days, 2 hours, 58 minutes, 11 seconds
In other bases
ternary (3) 1222012212222
quaternary (4) 3333233003
quinary (5) 232004431
senary (6) 34241255
septenary (7) 11621624
nonary (9) 1865788
undecimal (11) 655aa5
duodecimal (12) 42622b
tridecimal (13) 2a8a23
tetradecimal (14) 1d3a4b
pentadecimal (15) 15a57b

As an angle

1,047,491° = 2,909 × 360° + 251°
251° ≈ 4.381 rad
Compass bearing: WSW (west-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Chinese
一百零四萬七千四百九十一
Chinese (financial)
壹佰零肆萬柒仟肆佰玖拾壹
In other modern scripts
Eastern Arabic ١٠٤٧٤٩١ Devanagari १०४७४९१ Bengali ১০৪৭৪৯১ Tamil ௧௦௪௭௪௯௧ Thai ๑๐๔๗๔๙๑ Tibetan ༡༠༤༧༤༩༡ Khmer ១០៤៧៤៩១ Lao ໑໐໔໗໔໙໑ Burmese ၁၀၄၇၄၉၁

Also seen as

Prime neighborhood

Adjacent primes:

Hex color
#0FFBC3
RGB(15, 251, 195)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.251.195.

Address
0.15.251.195
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.251.195

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 4, 7491 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 7491-04-01 (DMMYYYY (Euro, single-digit day))
  • 7491-10-04 (MMDYYYY (US, single-digit day))
  • 7491-04-10 (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 1,047,491 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.