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49,040

49,040 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.).
Abundant Number Gapful Number Odious Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
16 bits
Reversed
4,094
Recamán's sequence
a(146,295) = 49,040
Square (n²)
2,404,921,600
Cube (n³)
117,937,355,264,000
Divisor count
20
σ(n) — sum of divisors
114,204
φ(n) — Euler's totient
19,584
Sum of prime factors
626

Primality

Prime factorization: 2 4 × 5 × 613

Nearest primes: 49,037 (−3) · 49,043 (+3)

Divisors & multiples

All divisors (20)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 40 · 80 · 613 · 1226 · 2452 · 3065 · 4904 · 6130 · 9808 · 12260 · 24520 (half) · 49040
Aliquot sum (sum of proper divisors): 65,164
Factor pairs (a × b = 49,040)
1 × 49040
2 × 24520
4 × 12260
5 × 9808
8 × 6130
10 × 4904
16 × 3065
20 × 2452
40 × 1226
80 × 613
First multiples
49,040 · 98,080 (double) · 147,120 · 196,160 · 245,200 · 294,240 · 343,280 · 392,320 · 441,360 · 490,400

Sums & aliquot sequence

As a sum of two squares: 64² + 212² = 76² + 208²
As consecutive integers: 9,806 + 9,807 + 9,808 + 9,809 + 9,810 1,517 + 1,518 + … + 1,548 227 + 228 + … + 386
Aliquot sequence: 49,040 65,164 59,324 44,500 53,780 59,200 90,406 53,234 28,606 14,306 8,158 4,082 2,554 1,280 1,786 1,094 550 — unresolved within range

Representations

In words
forty-nine thousand forty
Ordinal
49040th
Binary
1011111110010000
Octal
137620
Hexadecimal
0xBF90
Base64
v5A=
One's complement
16,495 (16-bit)
In other bases
ternary (3) 2111021022
quaternary (4) 23332100
quinary (5) 3032130
senary (6) 1015012
septenary (7) 262655
nonary (9) 74238
undecimal (11) 33932
duodecimal (12) 24468
tridecimal (13) 19424
tetradecimal (14) 13c2c
pentadecimal (15) e7e5

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆
Greek (Milesian)
͵μθμʹ
Mayan (base 20)
𝋦·𝋢·𝋬·𝋠
Chinese
四萬九千零四十
Chinese (financial)
肆萬玖仟零肆拾
In other modern scripts
Eastern Arabic ٤٩٠٤٠ Devanagari ४९०४० Bengali ৪৯০৪০ Tamil ௪௯௦௪௦ Thai ๔๙๐๔๐ Tibetan ༤༩༠༤༠ Khmer ៤៩០៤០ Lao ໔໙໐໔໐ Burmese ၄၉၀၄၀

Digit at this position in famous constants

π — Pi (π)
Digit 49,040 = 1
e — Euler's number (e)
Digit 49,040 = 0
φ — Golden ratio (φ)
Digit 49,040 = 0
√2 — Pythagoras's (√2)
Digit 49,040 = 7
ln 2 — Natural log of 2
Digit 49,040 = 9
γ — Euler-Mascheroni (γ)
Digit 49,040 = 8

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 49040, here are decompositions:

  • 3 + 49037 = 49040
  • 7 + 49033 = 49040
  • 31 + 49009 = 49040
  • 37 + 49003 = 49040
  • 67 + 48973 = 49040
  • 151 + 48889 = 49040
  • 157 + 48883 = 49040
  • 181 + 48859 = 49040

Showing the first eight; more decompositions exist.

Unicode codepoint
Hangul Syllable Bbwaek
U+BF90
Other letter (Lo)

UTF-8 encoding: EB BE 90 (3 bytes).

Hex color
#00BF90
RGB(0, 191, 144)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.191.144.

Address
0.0.191.144
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.191.144

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

Position in π

The digit sequence 49040 first appears in π at position 90,019 of the decimal expansion (the 90,019ordinal-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.