5,409
5,409 is a composite number, odd.
5,409 (five thousand four hundred nine) is an odd 4-digit number. It is a composite number with 6 divisors, and factors as 3² × 601. Written other ways, in hexadecimal, 0x1521.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 9,045
- Recamán's sequence
- a(4,398) = 5,409
- Square (n²)
- 29,257,281
- Cube (n³)
- 158,252,632,929
- Divisor count
- 6
- σ(n) — sum of divisors
- 7,826
- φ(n) — Euler's totient
- 3,600
- Sum of prime factors
- 607
Primality
Prime factorization: 3 2 × 601
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√5,409 = [73; (1, 1, 4, 1, 17, 1, 1, 3, 6, 9, 29, 3, 4, 3, 1, 2, 1, 10, 1, 1, 2, 1, 1, 1, …)]
Period length 58 — the block in parentheses repeats forever.
Representations
- In words
- five thousand four hundred nine
- Ordinal
- 5409th
- Binary
- 1010100100001
- Octal
- 12441
- Hexadecimal
- 0x1521
- Base64
- FSE=
- One's complement
- 60,126 (16-bit)
- Scientific notation
- 5.409 × 10³
- As a duration
- 5,409 s = 1 hour, 30 minutes, 9 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒌋𒌋 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ευθʹ
- Mayan (base 20)
- 𝋭·𝋪·𝋩
- Chinese
- 五千四百零九
- Chinese (financial)
- 伍仟肆佰零玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 5,409 = 5
- e — Euler's number (e)
- Digit 5,409 = 9
- φ — Golden ratio (φ)
- Digit 5,409 = 5
- √2 — Pythagoras's (√2)
- Digit 5,409 = 8
- ln 2 — Natural log of 2
- Digit 5,409 = 1
- γ — Euler-Mascheroni (γ)
- Digit 5,409 = 3
Also seen as
UTF-8 encoding: E1 94 A1 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.21.33.
- Address
- 0.0.21.33
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.21.33
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 5,409 Hz is closest to:
- Concert pitch (A4 = 440 Hz): E8 (5274 Hz, +44¢)
- Scientific pitch (C4 = 256 Hz): F8 (5467.5 Hz, -19¢)
- Baroque pitch (A4 = 415 Hz): F8 (5270.2 Hz, +45¢ — about midway to F♯8)
The digit sequence 5409 first appears in π at position 338 of the decimal expansion (the 338ordinal-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°.