4,129
4,129 is a prime, odd.
4,129 (four thousand one hundred twenty-nine) is an odd 4-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x1021.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 4
- Digit sum
- 16
- Digit product
- 72
- Digital root
- 7
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 9,214
- Recamán's sequence
- a(28,818) = 4,129
- Square (n²)
- 17,048,641
- Cube (n³)
- 70,393,838,689
- Divisor count
- 2
- σ(n) — sum of divisors
- 4,130
- φ(n) — Euler's totient
- 4,128
Primality
4,129 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√4,129 = [64; (3, 1, 7, 1, 4, 2, 7, 1, 1, 2, 1, 2, 7, 5, 4, 1, 1, 3, 2, 1, 13, 1, 1, 2, …)]
Representations
- In words
- four thousand one hundred twenty-nine
- Ordinal
- 4129th
- Binary
- 1000000100001
- Octal
- 10041
- Hexadecimal
- 0x1021
- Base64
- ECE=
- One's complement
- 61,406 (16-bit)
- Scientific notation
- 4.129 × 10³
- As a duration
- 4,129 s = 1 hour, 8 minutes, 49 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵δρκθʹ
- Mayan (base 20)
- 𝋪·𝋦·𝋩
- Chinese
- 四千一百二十九
- Chinese (financial)
- 肆仟壹佰貳拾玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 4,129 = 1
- e — Euler's number (e)
- Digit 4,129 = 3
- φ — Golden ratio (φ)
- Digit 4,129 = 0
- √2 — Pythagoras's (√2)
- Digit 4,129 = 4
- ln 2 — Natural log of 2
- Digit 4,129 = 2
- γ — Euler-Mascheroni (γ)
- Digit 4,129 = 9
Also seen as
UTF-8 encoding: E1 80 A1 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.16.33.
- Address
- 0.0.16.33
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.16.33
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 4,129 Hz is closest to:
- Concert pitch (A4 = 440 Hz): C8 (4186 Hz, -24¢)
- Scientific pitch (C4 = 256 Hz): C8 (4096 Hz, +14¢)
- Baroque pitch (A4 = 415 Hz): C♯8 (4182.9 Hz, -22¢)
The digit sequence 4129 first appears in π at position 34,129 of the decimal expansion (the 34,129ordinal-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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.