10,409
10,409 is a composite number, odd.
10,409 (ten thousand four hundred nine) is an odd 5-digit number. It is a composite number with 4 divisors, and factors as 7 × 1,487. Written other ways, in hexadecimal, 0x28A9.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 90,401
- Recamán's sequence
- a(50,701) = 10,409
- Square (n²)
- 108,347,281
- Cube (n³)
- 1,127,786,847,929
- Divisor count
- 4
- σ(n) — sum of divisors
- 11,904
- φ(n) — Euler's totient
- 8,916
- Sum of prime factors
- 1,494
Primality
Prime factorization: 7 × 1487
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√10,409 = [102; (40, 1, 4, 7, 1, 24, 1, 1, 1, 2, 4, 1, 2, 1, 1, 1, 4, 2, 1, 12, 15, 1, 1, 1, …)]
Representations
- In words
- ten thousand four hundred nine
- Ordinal
- 10409th
- Binary
- 10100010101001
- Octal
- 24251
- Hexadecimal
- 0x28A9
- Base64
- KKk=
- One's complement
- 55,126 (16-bit)
- Scientific notation
- 1.0409 × 10⁴
- As a duration
- 10,409 s = 2 hours, 53 minutes, 29 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιυθʹ
- Mayan (base 20)
- 𝋡·𝋦·𝋠·𝋩
- Chinese
- 一萬零四百零九
- Chinese (financial)
- 壹萬零肆佰零玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 10,409 = 9
- e — Euler's number (e)
- Digit 10,409 = 5
- φ — Golden ratio (φ)
- Digit 10,409 = 1
- √2 — Pythagoras's (√2)
- Digit 10,409 = 3
- ln 2 — Natural log of 2
- Digit 10,409 = 0
- γ — Euler-Mascheroni (γ)
- Digit 10,409 = 0
Also seen as
UTF-8 encoding: E2 A2 A9 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.40.169.
- Address
- 0.0.40.169
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.40.169
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 10,409 Hz is closest to:
- Concert pitch (A4 = 440 Hz): E9 (10548.1 Hz, -23¢)
- Scientific pitch (C4 = 256 Hz): E9 (10321.3 Hz, +15¢)
- Baroque pitch (A4 = 415 Hz): F9 (10540.3 Hz, -22¢)
The digit sequence 10409 first appears in π at position 50,962 of the decimal expansion (the 50,962ordinal-suffix:nd 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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.