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123,040

123,040 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.).

123,040 (one hundred twenty-three thousand forty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2⁵ × 5 × 769. Its proper divisors sum to 168,020, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E0A0.

Abundant Number Evil Number Gapful Number Harshad / Niven Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
10
Digit product
0
Digital root
1
Palindrome
No
Bit width
17 bits
Reversed
40,321
Square (n²)
15,138,841,600
Cube (n³)
1,862,683,070,464,000
Divisor count
24
σ(n) — sum of divisors
291,060
φ(n) — Euler's totient
49,152
Sum of prime factors
784

Primality

Prime factorization: 2 5 × 5 × 769

Nearest primes: 123,031 (−9) · 123,049 (+9)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 32 · 40 · 80 · 160 · 769 · 1538 · 3076 · 3845 · 6152 · 7690 · 12304 · 15380 · 24608 · 30760 · 61520 (half) · 123040
Aliquot sum (sum of proper divisors): 168,020
Factor pairs (a × b = 123,040)
1 × 123040
2 × 61520
4 × 30760
5 × 24608
8 × 15380
10 × 12304
16 × 7690
20 × 6152
32 × 3845
40 × 3076
80 × 1538
160 × 769
First multiples
123,040 · 246,080 (double) · 369,120 · 492,160 · 615,200 · 738,240 · 861,280 · 984,320 · 1,107,360 · 1,230,400

Sums & aliquot sequence

As a sum of two squares: 44² + 348² = 244² + 252²
As consecutive integers: 24,606 + 24,607 + 24,608 + 24,609 + 24,610 1,891 + 1,892 + … + 1,954 225 + 226 + … + 544
Aliquot sequence: 123,040 168,020 197,548 190,532 179,068 138,452 103,846 53,474 26,740 37,772 42,868 42,924 75,180 166,740 368,172 724,948 811,244 — unresolved within range

Continued fraction of √n

√123,040 = [350; (1, 3, 2, 1, 3, 1, 2, 3, 1, 700)]

Period length 10 — the block in parentheses repeats forever.

Representations

In words
one hundred twenty-three thousand forty
Ordinal
123040th
Binary
11110000010100000
Octal
360240
Hexadecimal
0x1E0A0
Base64
AeCg
One's complement
4,294,844,255 (32-bit)
Scientific notation
1.2304 × 10⁵
As a duration
123,040 s = 1 day, 10 hours, 10 minutes, 40 seconds
In other bases
ternary (3) 20020210001
quaternary (4) 132002200
quinary (5) 12414130
senary (6) 2345344
septenary (7) 1021501
nonary (9) 206701
undecimal (11) 84495
duodecimal (12) 5b254
tridecimal (13) 44008
tetradecimal (14) 32ba8
pentadecimal (15) 266ca

As an angle

123,040° = 341 × 360° + 280°
280° ≈ 4.887 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓆐𓂍𓂍𓆼𓆼𓆼𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ρκγμʹ
Mayan (base 20)
𝋯·𝋧·𝋬·𝋠
Chinese
一十二萬三千零四十
Chinese (financial)
壹拾貳萬參仟零肆拾
In other modern scripts
Eastern Arabic ١٢٣٠٤٠ Devanagari १२३०४० Bengali ১২৩০৪০ Tamil ௧௨௩௦௪௦ Thai ๑๒๓๐๔๐ Tibetan ༡༢༣༠༤༠ Khmer ១២៣០៤០ Lao ໑໒໓໐໔໐ Burmese ၁၂၃၀၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 123040, here are decompositions:

  • 23 + 123017 = 123040
  • 83 + 122957 = 123040
  • 101 + 122939 = 123040
  • 149 + 122891 = 123040
  • 173 + 122867 = 123040
  • 179 + 122861 = 123040
  • 191 + 122849 = 123040
  • 251 + 122789 = 123040

Showing the first eight; more decompositions exist.

Hex color
#01E0A0
RGB(1, 224, 160)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.224.160.

Address
0.1.224.160
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.224.160

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 123,040 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 123040 first appears in π at position 585,893 of the decimal expansion (the 585,893ordinal-suffix:rd 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