Live analysis

121,491

121,491 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.).

121,491 (one hundred twenty-one thousand four hundred ninety-one) is an odd 6-digit number. It is a composite number with 6 divisors, and factors as 3² × 13,499. Written other ways, in hexadecimal, 0x1DA93.

Arithmetic Number Cube-Free Deficient Number Evil Number

Interestingness

★ ☆ ☆ ☆ ☆

2 notable facts · grade F

121,479 121,480 121,481 121,482 121,483 121,484 121,485 121,486 121,487 121,488 121,489 121,490 121,491 121,492 121,493 121,494 121,495 121,496 121,497 121,498 121,499 121,500 121,501 121,502 121,503

less more

Properties

Parity: Odd
Digit count: 6
Digit sum: 18
Digit product: 72
Digital root: 9
Palindrome: No
Bit width: 17 bits
Reversed: 194,121
Square (n²): 14,760,063,081
Cube (n³): 1,793,214,823,773,771
Divisor count: 6
σ(n) — sum of divisors: 175,500
φ(n) — Euler's totient: 80,988
Sum of prime factors: 13,505

Primality

Prime factorization: 3 ² × 13499

Nearest primes: 121,487 (−4) · 121,493 (+2)

Divisors & multiples

All divisors (6)

1 · 3 · 9 · 13499 · 40497 · 121491

Aliquot sum (sum of proper divisors): 54,009

Factor pairs (a × b = 121,491)

1 × 121491

3 × 40497

9 × 13499

First multiples

121,491 · 242,982 (double) · 364,473 · 485,964 · 607,455 · 728,946 · 850,437 · 971,928 · 1,093,419 · 1,214,910

Sums & aliquot sequence

As consecutive integers: 60,745 + 60,746 40,496 + 40,497 + 40,498 20,246 + 20,247 + 20,248 + 20,249 + 20,250 + 20,251 13,495 + 13,496 + … + 13,503

Aliquot sequence: 121,491 → 54,009 → 28,827 → 12,825 → 11,975 → 2,905 → 1,127 → 241 → 1 → 0 — terminates at zero

Continued fraction of √n

√121,491 = [348; (1, 1, 3, 1, 347, 1, 3, 1, 1, 696)]

Period length 10 — the block in parentheses repeats forever.

Representations

In words: one hundred twenty-one thousand four hundred ninety-one
Ordinal: 121491st
Binary: 11101101010010011
Octal: 355223
Hexadecimal: 0x1DA93
Base64: AdqT
One's complement: 4,294,845,804 (32-bit)
Scientific notation: 1.21491 × 10⁵
As a duration: 121,491 s = 1 day, 9 hours, 44 minutes, 51 seconds

In other bases

ternary (3) 20011122200

quaternary (4) 131222103

quinary (5) 12341431

senary (6) 2334243

septenary (7) 1014126

nonary (9) 204580

undecimal (11) 83307

duodecimal (12) 5a383

tridecimal (13) 433b6

tetradecimal (14) 323bd

pentadecimal (15) 25ee6

As an angle

121,491° = 337 × 360° + 171°

171° ≈ 2.985 rad

Compass bearing: S (south)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic: 𓆐𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian): ͵ρκαυϟαʹ
Mayan (base 20): 𝋯·𝋣·𝋮·𝋫
Chinese: 一十二萬一千四百九十一
Chinese (financial): 壹拾貳萬壹仟肆佰玖拾壹

In other modern scripts

Eastern Arabic ١٢١٤٩١ Devanagari १२१४९१ Bengali ১২১৪৯১ Tamil ௧௨௧௪௯௧ Thai ๑๒๑๔๙๑ Tibetan ༡༢༡༤༩༡ Khmer ១២១៤៩១ Lao ໑໒໑໔໙໑ Burmese ၁၂၁၄၉၁

Also seen as

Hex color

#01DA93

RGB(1, 218, 147)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.218.147.

Address: 0.1.218.147
Class: reserved
IPv4-mapped IPv6: ::ffff:0.1.218.147

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 121,491 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 US121,491 on Google Patents ↗ Look up on USPTO ↗