4,125
4,125 is a composite number, odd.
4,125 (four thousand one hundred twenty-five) is an odd 4-digit number. It is a composite number with 16 divisors, and factors as 3 × 5³ × 11. Written other ways, in hexadecimal, 0x101D.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 12
- Digit product
- 40
- Digital root
- 3
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 5,214
- Recamán's sequence
- a(28,826) = 4,125
- Square (n²)
- 17,015,625
- Cube (n³)
- 70,189,453,125
- Divisor count
- 16
- σ(n) — sum of divisors
- 7,488
- φ(n) — Euler's totient
- 2,000
- Sum of prime factors
- 29
Primality
Prime factorization: 3 × 5 3 × 11
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√4,125 = [64; (4, 2, 2, 1, 2, 4, 1, 3, 3, 31, 1, 4, 5, 1, 10, 1, 5, 4, 1, 31, 3, 3, 1, 4, …)]
Period length 30 — the block in parentheses repeats forever.
Representations
- In words
- four thousand one hundred twenty-five
- Ordinal
- 4125th
- Binary
- 1000000011101
- Octal
- 10035
- Hexadecimal
- 0x101D
- Base64
- EB0=
- One's complement
- 61,410 (16-bit)
- Scientific notation
- 4.125 × 10³
- As a duration
- 4,125 s = 1 hour, 8 minutes, 45 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵δρκεʹ
- Mayan (base 20)
- 𝋪·𝋦·𝋥
- Chinese
- 四千一百二十五
- Chinese (financial)
- 肆仟壹佰貳拾伍
Digit at this position in famous constants
- π — Pi (π)
- Digit 4,125 = 4
- e — Euler's number (e)
- Digit 4,125 = 2
- φ — Golden ratio (φ)
- Digit 4,125 = 0
- √2 — Pythagoras's (√2)
- Digit 4,125 = 3
- ln 2 — Natural log of 2
- Digit 4,125 = 2
- γ — Euler-Mascheroni (γ)
- Digit 4,125 = 8
Also seen as
UTF-8 encoding: E1 80 9D (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.16.29.
- Address
- 0.0.16.29
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.16.29
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 4,125 Hz is closest to:
- Concert pitch (A4 = 440 Hz): C8 (4186 Hz, -25¢)
- Scientific pitch (C4 = 256 Hz): C8 (4096 Hz, +12¢)
- Baroque pitch (A4 = 415 Hz): C♯8 (4182.9 Hz, -24¢)
The digit sequence 4125 first appears in π at position 20,302 of the decimal expansion (the 20,302ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.