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26,240

26,240 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.).
Abundant Number Gapful Number Odious Number Pernicious Number Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
14
Digit product
0
Digital root
5
Palindrome
No
Bit width
15 bits
Reversed
4,262
Recamán's sequence
a(8,231) = 26,240
Square (n²)
688,537,600
Cube (n³)
18,067,226,624,000
Divisor count
32
σ(n) — sum of divisors
64,260
φ(n) — Euler's totient
10,240
Sum of prime factors
60

Primality

Prime factorization: 2 7 × 5 × 41

Nearest primes: 26,237 (−3) · 26,249 (+9)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 32 · 40 · 41 · 64 · 80 · 82 · 128 · 160 · 164 · 205 · 320 · 328 · 410 · 640 · 656 · 820 · 1312 · 1640 · 2624 · 3280 · 5248 · 6560 · 13120 (half) · 26240
Aliquot sum (sum of proper divisors): 38,020
Factor pairs (a × b = 26,240)
1 × 26240
2 × 13120
4 × 6560
5 × 5248
8 × 3280
10 × 2624
16 × 1640
20 × 1312
32 × 820
40 × 656
41 × 640
64 × 410
80 × 328
82 × 320
128 × 205
160 × 164
First multiples
26,240 · 52,480 (double) · 78,720 · 104,960 · 131,200 · 157,440 · 183,680 · 209,920 · 236,160 · 262,400

Sums & aliquot sequence

As a sum of two squares: 56² + 152² = 88² + 136²
As consecutive integers: 5,246 + 5,247 + 5,248 + 5,249 + 5,250 620 + 621 + … + 660 26 + 27 + … + 230
Aliquot sequence: 26,240 38,020 41,864 36,646 19,298 9,652 8,268 12,900 25,292 18,976 18,446 10,498 5,882 3,514 2,534 1,834 1,334 — unresolved within range

Representations

In words
twenty-six thousand two hundred forty
Ordinal
26240th
Binary
110011010000000
Octal
63200
Hexadecimal
0x6680
Base64
ZoA=
One's complement
39,295 (16-bit)
In other bases
ternary (3) 1022222212
quaternary (4) 12122000
quinary (5) 1314430
senary (6) 321252
septenary (7) 136334
nonary (9) 38885
undecimal (11) 18795
duodecimal (12) 13228
tridecimal (13) bc36
tetradecimal (14) 97c4
pentadecimal (15) 7b95

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵κϛσμʹ
Mayan (base 20)
𝋣·𝋥·𝋬·𝋠
Chinese
二萬六千二百四十
Chinese (financial)
貳萬陸仟貳佰肆拾
In other modern scripts
Eastern Arabic ٢٦٢٤٠ Devanagari २६२४० Bengali ২৬২৪০ Tamil ௨௬௨௪௦ Thai ๒๖๒๔๐ Tibetan ༢༦༢༤༠ Khmer ២៦២៤០ Lao ໒໖໒໔໐ Burmese ၂၆၂၄၀

Digit at this position in famous constants

π — Pi (π)
Digit 26,240 = 9
e — Euler's number (e)
Digit 26,240 = 3
φ — Golden ratio (φ)
Digit 26,240 = 6
√2 — Pythagoras's (√2)
Digit 26,240 = 9
ln 2 — Natural log of 2
Digit 26,240 = 9
γ — Euler-Mascheroni (γ)
Digit 26,240 = 6

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 26240, here are decompositions:

  • 3 + 26237 = 26240
  • 13 + 26227 = 26240
  • 31 + 26209 = 26240
  • 37 + 26203 = 26240
  • 79 + 26161 = 26240
  • 127 + 26113 = 26240
  • 157 + 26083 = 26240
  • 199 + 26041 = 26240

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-6680
U+6680
Other letter (Lo)

UTF-8 encoding: E6 9A 80 (3 bytes).

Hex color
#006680
RGB(0, 102, 128)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.102.128.

Address
0.0.102.128
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.102.128

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 26240 first appears in π at position 37,903 of the decimal expansion (the 37,903ordinal-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.