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5,240

5,240 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 Evil Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
4
Digit sum
11
Digit product
0
Digital root
2
Palindrome
No
Bit width
13 bits
Reversed
425
Recamán's sequence
a(27,956) = 5,240
Square (n²)
27,457,600
Cube (n³)
143,877,824,000
Divisor count
16
σ(n) — sum of divisors
11,880
φ(n) — Euler's totient
2,080
Sum of prime factors
142

Primality

Prime factorization: 2 3 × 5 × 131

Nearest primes: 5,237 (−3) · 5,261 (+21)

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 131 · 262 · 524 · 655 · 1048 · 1310 · 2620 (half) · 5240
Aliquot sum (sum of proper divisors): 6,640
Factor pairs (a × b = 5,240)
1 × 5240
2 × 2620
4 × 1310
5 × 1048
8 × 655
10 × 524
20 × 262
40 × 131
First multiples
5,240 · 10,480 (double) · 15,720 · 20,960 · 26,200 · 31,440 · 36,680 · 41,920 · 47,160 · 52,400

Sums & aliquot sequence

As consecutive integers: 1,046 + 1,047 + 1,048 + 1,049 + 1,050 320 + 321 + … + 335 26 + 27 + … + 105
Aliquot sequence: 5,240 6,640 8,984 7,876 7,244 5,440 8,276 6,214 3,866 1,936 2,187 1,093 1 0 — terminates at zero

Representations

In words
five thousand two hundred forty
Ordinal
5240th
Binary
1010001111000
Octal
12170
Hexadecimal
0x1478
Base64
FHg=
One's complement
60,295 (16-bit)
In other bases
ternary (3) 21012002
quaternary (4) 1101320
quinary (5) 131430
senary (6) 40132
septenary (7) 21164
nonary (9) 7162
undecimal (11) 3a34
duodecimal (12) 3048
tridecimal (13) 2501
tetradecimal (14) 1ca4
pentadecimal (15) 1845

Historical numeral systems

Babylonian (base 60)
𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵εσμʹ
Mayan (base 20)
𝋭·𝋢·𝋠
Chinese
五千二百四十
Chinese (financial)
伍仟貳佰肆拾
In other modern scripts
Eastern Arabic ٥٢٤٠ Devanagari ५२४० Bengali ৫২৪০ Tamil ௫௨௪௦ Thai ๕๒๔๐ Tibetan ༥༢༤༠ Khmer ៥២៤០ Lao ໕໒໔໐ Burmese ၅၂၄၀

Digit at this position in famous constants

π — Pi (π)
Digit 5,240 = 1
e — Euler's number (e)
Digit 5,240 = 7
φ — Golden ratio (φ)
Digit 5,240 = 5
√2 — Pythagoras's (√2)
Digit 5,240 = 5
ln 2 — Natural log of 2
Digit 5,240 = 1
γ — Euler-Mascheroni (γ)
Digit 5,240 = 9

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 5240, here are decompositions:

  • 3 + 5237 = 5240
  • 7 + 5233 = 5240
  • 13 + 5227 = 5240
  • 31 + 5209 = 5240
  • 43 + 5197 = 5240
  • 61 + 5179 = 5240
  • 73 + 5167 = 5240
  • 127 + 5113 = 5240

Showing the first eight; more decompositions exist.

Unicode codepoint
Canadian Syllabics Kwii
U+1478
Other letter (Lo)

UTF-8 encoding: E1 91 B8 (3 bytes).

Hex color
#001478
RGB(0, 20, 120)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.20.120.

Address
0.0.20.120
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.20.120

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

Position in π

The digit sequence 5240 first appears in π at position 6,013 of the decimal expansion (the 6,013ordinal-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.