4,212
4,212 is a composite number, even.
4,212 (four thousand two hundred twelve) is an even 4-digit number. It is a composite number with 30 divisors, and factors as 2² × 3⁴ × 13. Its proper divisors sum to 7,646, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1074.
Interestingness
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 9
- Digit product
- 16
- Digital root
- 9
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 2,124
- Recamán's sequence
- a(1,248) = 4,212
- Square (n²)
- 17,740,944
- Cube (n³)
- 74,724,856,128
- Divisor count
- 30
- σ(n) — sum of divisors
- 11,858
- φ(n) — Euler's totient
- 1,296
- Sum of prime factors
- 29
Primality
Prime factorization: 2 2 × 3 4 × 13
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√4,212 = [64; (1, 8, 1, 128)]
Period length 4 — the block in parentheses repeats forever.
Representations
- In words
- four thousand two hundred twelve
- Ordinal
- 4212th
- Binary
- 1000001110100
- Octal
- 10164
- Hexadecimal
- 0x1074
- Base64
- EHQ=
- One's complement
- 61,323 (16-bit)
- Scientific notation
- 4.212 × 10³
- As a duration
- 4,212 s = 1 hour, 10 minutes, 12 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋 𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓏺𓏺
- Greek (Milesian)
- ͵δσιβʹ
- Mayan (base 20)
- 𝋪·𝋪·𝋬
- Chinese
- 四千二百一十二
- Chinese (financial)
- 肆仟貳佰壹拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 4,212 = 5
- e — Euler's number (e)
- Digit 4,212 = 1
- φ — Golden ratio (φ)
- Digit 4,212 = 6
- √2 — Pythagoras's (√2)
- Digit 4,212 = 2
- ln 2 — Natural log of 2
- Digit 4,212 = 9
- γ — Euler-Mascheroni (γ)
- Digit 4,212 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4212, here are decompositions:
- 11 + 4201 = 4212
- 53 + 4159 = 4212
- 59 + 4153 = 4212
- 73 + 4139 = 4212
- 79 + 4133 = 4212
- 83 + 4129 = 4212
- 101 + 4111 = 4212
- 113 + 4099 = 4212
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 81 B4 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.16.116.
- Address
- 0.0.16.116
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.16.116
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 4,212 Hz is closest to:
- Concert pitch (A4 = 440 Hz): C8 (4186 Hz, +11¢)
- Scientific pitch (C4 = 256 Hz): C8 (4096 Hz, +48¢ — about midway to C♯8)
- Baroque pitch (A4 = 415 Hz): C♯8 (4182.9 Hz, +12¢)
The digit sequence 4212 first appears in π at position 31,063 of the decimal expansion (the 31,063ordinal-suffix:rd 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°.