49,440
49,440 is a composite number, even.
49,440 (forty-nine thousand four hundred forty) is an even 5-digit number. It is a composite number with 48 divisors, and factors as 2⁵ × 3 × 5 × 103. Its proper divisors sum to 107,808, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xC120.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 21
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 4,494
- Square (n²)
- 2,444,313,600
- Cube (n³)
- 120,846,864,384,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 157,248
- φ(n) — Euler's totient
- 13,056
- Sum of prime factors
- 121
Primality
Prime factorization: 2 5 × 3 × 5 × 103
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√49,440 = [222; (2, 1, 5, 1, 1, 2, 11, 111, 11, 2, 1, 1, 5, 1, 2, 444)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- forty-nine thousand four hundred forty
- Ordinal
- 49440th
- Binary
- 1100000100100000
- Octal
- 140440
- Hexadecimal
- 0xC120
- Base64
- wSA=
- One's complement
- 16,095 (16-bit)
- Scientific notation
- 4.944 × 10⁴
- As a duration
- 49,440 s = 13 hours, 44 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵μθυμʹ
- Mayan (base 20)
- 𝋦·𝋣·𝋬·𝋠
- Chinese
- 四萬九千四百四十
- Chinese (financial)
- 肆萬玖仟肆佰肆拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 49,440 = 6
- e — Euler's number (e)
- Digit 49,440 = 9
- φ — Golden ratio (φ)
- Digit 49,440 = 2
- √2 — Pythagoras's (√2)
- Digit 49,440 = 7
- ln 2 — Natural log of 2
- Digit 49,440 = 5
- γ — Euler-Mascheroni (γ)
- Digit 49,440 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 49440, here are decompositions:
- 7 + 49433 = 49440
- 11 + 49429 = 49440
- 23 + 49417 = 49440
- 29 + 49411 = 49440
- 31 + 49409 = 49440
- 47 + 49393 = 49440
- 71 + 49369 = 49440
- 73 + 49367 = 49440
Showing the first eight; more decompositions exist.
UTF-8 encoding: EC 84 A0 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.193.32.
- Address
- 0.0.193.32
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.193.32
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 49440 first appears in π at position 32,565 of the decimal expansion (the 32,565ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.