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122,991

122,991 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.).

122,991 (one hundred twenty-two thousand nine hundred ninety-one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 3 × 11 × 3,727. Written other ways, in hexadecimal, 0x1E06F.

Arithmetic Number Cube-Free Deficient Number Evil Number Gapful Number Smith Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
24
Digit product
324
Digital root
6
Palindrome
No
Bit width
17 bits
Reversed
199,221
Square (n²)
15,126,786,081
Cube (n³)
1,860,458,546,888,271
Divisor count
8
σ(n) — sum of divisors
178,944
φ(n) — Euler's totient
74,520
Sum of prime factors
3,741

Primality

Prime factorization: 3 × 11 × 3727

Nearest primes: 122,971 (−20) · 123,001 (+10)

Divisors & multiples

All divisors (8)
1 · 3 · 11 · 33 · 3727 · 11181 · 40997 · 122991
Aliquot sum (sum of proper divisors): 55,953
Factor pairs (a × b = 122,991)
1 × 122991
3 × 40997
11 × 11181
33 × 3727
First multiples
122,991 · 245,982 (double) · 368,973 · 491,964 · 614,955 · 737,946 · 860,937 · 983,928 · 1,106,919 · 1,229,910

Sums & aliquot sequence

As consecutive integers: 61,495 + 61,496 40,996 + 40,997 + 40,998 20,496 + 20,497 + 20,498 + 20,499 + 20,500 + 20,501 11,176 + 11,177 + … + 11,186
Aliquot sequence: 122,991 55,953 24,881 319 41 1 0 — terminates at zero

Continued fraction of √n

√122,991 = [350; (1, 2, 2, 1, 13, 18, 1, 7, 1, 1, 1, 1, 5, 1, 19, 5, 4, 2, 10, 1, 6, 2, 7, 1, …)]

Period length 50 — the block in parentheses repeats forever.

Representations

In words
one hundred twenty-two thousand nine hundred ninety-one
Ordinal
122991st
Binary
11110000001101111
Octal
360157
Hexadecimal
0x1E06F
Base64
AeBv
One's complement
4,294,844,304 (32-bit)
Scientific notation
1.22991 × 10⁵
As a duration
122,991 s = 1 day, 10 hours, 9 minutes, 51 seconds
In other bases
ternary (3) 20020201020
quaternary (4) 132001233
quinary (5) 12413431
senary (6) 2345223
septenary (7) 1021401
nonary (9) 206636
undecimal (11) 84450
duodecimal (12) 5b213
tridecimal (13) 43c9b
tetradecimal (14) 32b71
pentadecimal (15) 26696

As an angle

122,991° = 341 × 360° + 231°
231° ≈ 4.032 rad
Compass bearing: SW (southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ρκβϡϟαʹ
Mayan (base 20)
𝋯·𝋧·𝋩·𝋫
Chinese
一十二萬二千九百九十一
Chinese (financial)
壹拾貳萬貳仟玖佰玖拾壹
In other modern scripts
Eastern Arabic ١٢٢٩٩١ Devanagari १२२९९१ Bengali ১২২৯৯১ Tamil ௧௨௨௯௯௧ Thai ๑๒๒๙๙๑ Tibetan ༡༢༢༩༩༡ Khmer ១២២៩៩១ Lao ໑໒໒໙໙໑ Burmese ၁၂၂၉၉၁

Also seen as

Hex color
#01E06F
RGB(1, 224, 111)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.224.111.

Address
0.1.224.111
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.224.111

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 122,991 and was likely granted around 1871.

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

Related reading

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