Live analysis

121,005

121,005 is a composite number, 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.).

121,005 (one hundred twenty-one thousand five) is an odd 6-digit number. It is a composite number with 12 divisors, and factors as 3² × 5 × 2,689. Written other ways, in hexadecimal, 0x1D8AD.

Arithmetic Number Cube-Free Deficient Number Evil Number Gapful Number Happy Number Harshad / Niven

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

120,993 120,994 120,995 120,996 120,997 120,998 120,999 121,000 121,001 121,002 121,003 121,004 121,005 121,006 121,007 121,008 121,009 121,010 121,011 121,012 121,013 121,014 121,015 121,016 121,017

less more

Properties

Parity: Odd
Digit count: 6
Digit sum: 9
Digit product: 0
Digital root: 9
Palindrome: No
Bit width: 17 bits
Reversed: 500,121
Square (n²): 14,642,210,025
Cube (n³): 1,771,780,624,075,125
Divisor count: 12
σ(n) — sum of divisors: 209,820
φ(n) — Euler's totient: 64,512
Sum of prime factors: 2,700

Primality

Prime factorization: 3 ² × 5 × 2689

Nearest primes: 121,001 (−4) · 121,007 (+2)

Divisors & multiples

All divisors (12)

1 · 3 · 5 · 9 · 15 · 45 · 2689 · 8067 · 13445 · 24201 · 40335 · 121005

Aliquot sum (sum of proper divisors): 88,815

Factor pairs (a × b = 121,005)

1 × 121005

3 × 40335

5 × 24201

9 × 13445

15 × 8067

45 × 2689

First multiples

121,005 · 242,010 (double) · 363,015 · 484,020 · 605,025 · 726,030 · 847,035 · 968,040 · 1,089,045 · 1,210,050

Sums & aliquot sequence

As a sum of two squares: 78² + 339² = 141² + 318²

As consecutive integers: 60,502 + 60,503 40,334 + 40,335 + 40,336 24,199 + 24,200 + 24,201 + 24,202 + 24,203 20,165 + 20,166 + 20,167 + 20,168 + 20,169 + 20,170

Aliquot sequence: 121,005 → 88,815 → 58,641 → 26,703 → 15,537 → 5,183 → 145 → 35 → 13 → 1 → 0 — terminates at zero

Continued fraction of √n

√121,005 = [347; (1, 6, 34, 1, 1, 1, 4, 173, 1, 2, 1, 1, 138, 1, 1, 2, 1, 173, 4, 1, 1, 1, 34, 6, …)]

Period length 26 — the block in parentheses repeats forever.

Representations

In words: one hundred twenty-one thousand five
Ordinal: 121005th
Binary: 11101100010101101
Octal: 354255
Hexadecimal: 0x1D8AD
Base64: Adit
One's complement: 4,294,846,290 (32-bit)
Scientific notation: 1.21005 × 10⁵
As a duration: 121,005 s = 1 day, 9 hours, 36 minutes, 45 seconds

In other bases

ternary (3) 20010222200

quaternary (4) 131202231

quinary (5) 12333010

senary (6) 2332113

septenary (7) 1012533

nonary (9) 203880

undecimal (11) 82a05

duodecimal (12) 5a039

tridecimal (13) 43101

tetradecimal (14) 32153

pentadecimal (15) 25cc0

As an angle

121,005° = 336 × 360° + 45°

45° ≈ 0.785 rad

Compass bearing: NE (northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓆐𓂍𓂍𓆼𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵ρκαεʹ
Mayan (base 20): 𝋯·𝋢·𝋪·𝋥
Chinese: 一十二萬一千零五
Chinese (financial): 壹拾貳萬壹仟零伍

In other modern scripts

Eastern Arabic ١٢١٠٠٥ Devanagari १२१००५ Bengali ১২১০০৫ Tamil ௧௨௧௦௦௫ Thai ๑๒๑๐๐๕ Tibetan ༡༢༡༠༠༥ Khmer ១២១០០៥ Lao ໑໒໑໐໐໕ Burmese ၁၂၁၀၀၅

Also seen as

Unicode codepoint

𝢭

Signwriting Hand-Angle Ring Down Middle Thumb Index Cross

U+1D8AD

Other symbol (So)

UTF-8 encoding: F0 9D A2 AD (4 bytes).

Lookup U+1D8AD on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#01D8AD

RGB(1, 216, 173)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.216.173.

Address: 0.1.216.173
Class: reserved
IPv4-mapped IPv6: ::ffff:0.1.216.173

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 121,005 and was likely granted around 1871.

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

Look up US121,005 on Google Patents ↗ Look up on USPTO ↗