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121,764

121,764 is a composite number, even.

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.).

121,764 (one hundred twenty-one thousand seven hundred sixty-four) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 73 × 139. Its proper divisors sum to 168,316, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1DBA4.

Abundant Number Cube-Free Evil Number Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
21
Digit product
336
Digital root
3
Palindrome
No
Bit width
17 bits
Reversed
467,121
Square (n²)
14,826,471,696
Cube (n³)
1,805,330,499,591,744
Divisor count
24
σ(n) — sum of divisors
290,080
φ(n) — Euler's totient
39,744
Sum of prime factors
219

Primality

Prime factorization: 2 2 × 3 × 73 × 139

Nearest primes: 121,763 (−1) · 121,787 (+23)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 12 · 73 · 139 · 146 · 219 · 278 · 292 · 417 · 438 · 556 · 834 · 876 · 1668 · 10147 · 20294 · 30441 · 40588 · 60882 (half) · 121764
Aliquot sum (sum of proper divisors): 168,316
Factor pairs (a × b = 121,764)
1 × 121764
2 × 60882
3 × 40588
4 × 30441
6 × 20294
12 × 10147
73 × 1668
139 × 876
146 × 834
219 × 556
278 × 438
292 × 417
First multiples
121,764 · 243,528 (double) · 365,292 · 487,056 · 608,820 · 730,584 · 852,348 · 974,112 · 1,095,876 · 1,217,640

Sums & aliquot sequence

As consecutive integers: 40,587 + 40,588 + 40,589 15,217 + 15,218 + … + 15,224 5,062 + 5,063 + … + 5,085 1,632 + 1,633 + … + 1,704
Aliquot sequence: 121,764 168,316 136,604 131,524 101,324 78,940 86,876 69,532 52,156 53,684 40,270 32,234 17,014 9,194 4,600 6,560 9,316 — unresolved within range

Continued fraction of √n

√121,764 = [348; (1, 17, 1, 6, 3, 9, 1, 3, 1, 10, 9, 4, 1, 2, 2, 1, 2, 1, 1, 5, 5, 3, 1, 1, …)]

Representations

In words
one hundred twenty-one thousand seven hundred sixty-four
Ordinal
121764th
Binary
11101101110100100
Octal
355644
Hexadecimal
0x1DBA4
Base64
Aduk
One's complement
4,294,845,531 (32-bit)
Scientific notation
1.21764 × 10⁵
As a duration
121,764 s = 1 day, 9 hours, 49 minutes, 24 seconds
In other bases
ternary (3) 20012000210
quaternary (4) 131232210
quinary (5) 12344024
senary (6) 2335420
septenary (7) 1014666
nonary (9) 205023
undecimal (11) 83535
duodecimal (12) 5a570
tridecimal (13) 43566
tetradecimal (14) 32536
pentadecimal (15) 26129

As an angle

121,764° = 338 × 360° + 84°
84° ≈ 1.466 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρκαψξδʹ
Mayan (base 20)
𝋯·𝋤·𝋨·𝋤
Chinese
一十二萬一千七百六十四
Chinese (financial)
壹拾貳萬壹仟柒佰陸拾肆
In other modern scripts
Eastern Arabic ١٢١٧٦٤ Devanagari १२१७६४ Bengali ১২১৭৬৪ Tamil ௧௨௧௭௬௪ Thai ๑๒๑๗๖๔ Tibetan ༡༢༡༧༦༤ Khmer ១២១៧៦៤ Lao ໑໒໑໗໖໔ Burmese ၁၂၁၇၆၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 121764, here are decompositions:

  • 37 + 121727 = 121764
  • 43 + 121721 = 121764
  • 53 + 121711 = 121764
  • 67 + 121697 = 121764
  • 103 + 121661 = 121764
  • 127 + 121637 = 121764
  • 131 + 121633 = 121764
  • 157 + 121607 = 121764

Showing the first eight; more decompositions exist.

Hex color
#01DBA4
RGB(1, 219, 164)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.219.164.

Address
0.1.219.164
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.219.164

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 121,764 and was likely granted around 1871.

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

Position in π

The digit sequence 121764 first appears in π at position 588,808 of the decimal expansion (the 588,808ordinal-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

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.