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121,923

121,923 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.).

121,923 (one hundred twenty-one thousand nine hundred twenty-three) is an odd 6-digit number. It is a composite number with 24 divisors, and factors as 3² × 19 × 23 × 31. Written other ways, in hexadecimal, 0x1DC43.

Arithmetic Number Cube-Free Deficient Number Happy Number Odious Number

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
18
Digit product
108
Digital root
9
Palindrome
No
Bit width
17 bits
Reversed
329,121
Square (n²)
14,865,217,929
Cube (n³)
1,812,411,965,557,467
Divisor count
24
σ(n) — sum of divisors
199,680
φ(n) — Euler's totient
71,280
Sum of prime factors
79

Primality

Prime factorization: 3 2 × 19 × 23 × 31

Nearest primes: 121,921 (−2) · 121,931 (+8)

Divisors & multiples

All divisors (24)
1 · 3 · 9 · 19 · 23 · 31 · 57 · 69 · 93 · 171 · 207 · 279 · 437 · 589 · 713 · 1311 · 1767 · 2139 · 3933 · 5301 · 6417 · 13547 · 40641 · 121923
Aliquot sum (sum of proper divisors): 77,757
Factor pairs (a × b = 121,923)
1 × 121923
3 × 40641
9 × 13547
19 × 6417
23 × 5301
31 × 3933
57 × 2139
69 × 1767
93 × 1311
171 × 713
207 × 589
279 × 437
First multiples
121,923 · 243,846 (double) · 365,769 · 487,692 · 609,615 · 731,538 · 853,461 · 975,384 · 1,097,307 · 1,219,230

Sums & aliquot sequence

As consecutive integers: 60,961 + 60,962 40,640 + 40,641 + 40,642 20,318 + 20,319 + 20,320 + 20,321 + 20,322 + 20,323 13,543 + 13,544 + … + 13,551
Aliquot sequence: 121,923 77,757 25,923 8,645 4,795 1,829 91 21 11 1 0 — terminates at zero

Continued fraction of √n

√121,923 = [349; (5, 1, 2, 1, 1, 1, 1, 5, 3, 3, 1, 4, 2, 13, 1, 3, 1, 76, 1, 3, 1, 13, 2, 4, …)]

Period length 36 — the block in parentheses repeats forever.

Representations

In words
one hundred twenty-one thousand nine hundred twenty-three
Ordinal
121923rd
Binary
11101110001000011
Octal
356103
Hexadecimal
0x1DC43
Base64
AdxD
One's complement
4,294,845,372 (32-bit)
Scientific notation
1.21923 × 10⁵
As a duration
121,923 s = 1 day, 9 hours, 52 minutes, 3 seconds
In other bases
ternary (3) 20012020200
quaternary (4) 131301003
quinary (5) 12400143
senary (6) 2340243
septenary (7) 1015314
nonary (9) 205220
undecimal (11) 8366a
duodecimal (12) 5a683
tridecimal (13) 43659
tetradecimal (14) 3260b
pentadecimal (15) 261d3

As an angle

121,923° = 338 × 360° + 243°
243° ≈ 4.241 rad
Compass bearing: WSW (west-southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺
Greek (Milesian)
͵ρκαϡκγʹ
Mayan (base 20)
𝋯·𝋤·𝋰·𝋣
Chinese
一十二萬一千九百二十三
Chinese (financial)
壹拾貳萬壹仟玖佰貳拾參
In other modern scripts
Eastern Arabic ١٢١٩٢٣ Devanagari १२१९२३ Bengali ১২১৯২৩ Tamil ௧௨௧௯௨௩ Thai ๑๒๑๙๒๓ Tibetan ༡༢༡༩༢༣ Khmer ១២១៩២៣ Lao ໑໒໑໙໒໓ Burmese ၁၂၁၉၂၃

Also seen as

Hex color
#01DC43
RGB(1, 220, 67)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.220.67.

Address
0.1.220.67
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.220.67

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 121,923 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 121923 first appears in π at position 553,911 of the decimal expansion (the 553,911ordinal-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°.