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123,968

123,968 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.).

123,968 (one hundred twenty-three thousand nine hundred sixty-eight) is an even 6-digit number. It is a composite number with 28 divisors, and factors as 2⁶ × 13 × 149. Its proper divisors sum to 142,732, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E440.

Abundant Number Arithmetic Number Evil Number Practical Number Recamán's Sequence Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
29
Digit product
2,592
Digital root
2
Palindrome
No
Bit width
17 bits
Reversed
869,321
Recamán's sequence
a(238,228) = 123,968
Square (n²)
15,368,065,024
Cube (n³)
1,905,148,284,895,232
Divisor count
28
σ(n) — sum of divisors
266,700
φ(n) — Euler's totient
56,832
Sum of prime factors
174

Primality

Prime factorization: 2 6 × 13 × 149

Nearest primes: 123,953 (−15) · 123,973 (+5)

Divisors & multiples

All divisors (28)
1 · 2 · 4 · 8 · 13 · 16 · 26 · 32 · 52 · 64 · 104 · 149 · 208 · 298 · 416 · 596 · 832 · 1192 · 1937 · 2384 · 3874 · 4768 · 7748 · 9536 · 15496 · 30992 · 61984 (half) · 123968
Aliquot sum (sum of proper divisors): 142,732
Factor pairs (a × b = 123,968)
1 × 123968
2 × 61984
4 × 30992
8 × 15496
13 × 9536
16 × 7748
26 × 4768
32 × 3874
52 × 2384
64 × 1937
104 × 1192
149 × 832
208 × 596
298 × 416
First multiples
123,968 · 247,936 (double) · 371,904 · 495,872 · 619,840 · 743,808 · 867,776 · 991,744 · 1,115,712 · 1,239,680

Sums & aliquot sequence

As a sum of two squares: 8² + 352² = 128² + 328²
As consecutive integers: 9,530 + 9,531 + … + 9,542 905 + 906 + … + 1,032 758 + 759 + … + 906
Aliquot sequence: 123,968 142,732 121,868 91,408 92,732 71,908 53,938 27,962 20,422 10,214 5,110 5,546 3,094 2,954 2,134 1,394 874 — unresolved within range

Continued fraction of √n

√123,968 = [352; (11, 704)]

Period length 2 — the block in parentheses repeats forever.

Representations

In words
one hundred twenty-three thousand nine hundred sixty-eight
Ordinal
123968th
Binary
11110010001000000
Octal
362100
Hexadecimal
0x1E440
Base64
AeRA
One's complement
4,294,843,327 (32-bit)
Scientific notation
1.23968 × 10⁵
As a duration
123,968 s = 1 day, 10 hours, 26 minutes, 8 seconds
In other bases
ternary (3) 20022001102
quaternary (4) 132101000
quinary (5) 12431333
senary (6) 2353532
septenary (7) 1024265
nonary (9) 208042
undecimal (11) 85159
duodecimal (12) 5b8a8
tridecimal (13) 44570
tetradecimal (14) 3326c
pentadecimal (15) 26ae8
Palindromic in base 6

As an angle

123,968° = 344 × 360° + 128°
128° ≈ 2.234 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρκγϡξηʹ
Mayan (base 20)
𝋯·𝋩·𝋲·𝋨
Chinese
一十二萬三千九百六十八
Chinese (financial)
壹拾貳萬參仟玖佰陸拾捌
In other modern scripts
Eastern Arabic ١٢٣٩٦٨ Devanagari १२३९६८ Bengali ১২৩৯৬৮ Tamil ௧௨௩௯௬௮ Thai ๑๒๓๙๖๘ Tibetan ༡༢༣༩༦༨ Khmer ១២៣៩៦៨ Lao ໑໒໓໙໖໘ Burmese ၁၂၃၉၆၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 123968, here are decompositions:

  • 37 + 123931 = 123968
  • 139 + 123829 = 123968
  • 151 + 123817 = 123968
  • 181 + 123787 = 123968
  • 211 + 123757 = 123968
  • 241 + 123727 = 123968
  • 307 + 123661 = 123968
  • 331 + 123637 = 123968

Showing the first eight; more decompositions exist.

Hex color
#01E440
RGB(1, 228, 64)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.228.64.

Address
0.1.228.64
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.228.64

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 123,968 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 123968 first appears in π at position 437,315 of the decimal expansion (the 437,315ordinal-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

  • Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.