4,988
4,988 is a composite number, even.
4,988 (four thousand nine hundred eighty-eight) is an even 4-digit number. It is a composite number with 12 divisors, and factors as 2² × 29 × 43. Written other ways, in hexadecimal, 0x137C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 29
- Digit product
- 2,304
- Digital root
- 2
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 8,894
- Recamán's sequence
- a(28,152) = 4,988
- Square (n²)
- 24,880,144
- Cube (n³)
- 124,102,158,272
- Divisor count
- 12
- σ(n) — sum of divisors
- 9,240
- φ(n) — Euler's totient
- 2,352
- Sum of prime factors
- 76
Primality
Prime factorization: 2 2 × 29 × 43
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√4,988 = [70; (1, 1, 1, 2, 19, 1, 4, 10, 1, 1, 1, 34, 1, 1, 1, 10, 4, 1, 19, 2, 1, 1, 1, 140)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- four thousand nine hundred eighty-eight
- Ordinal
- 4988th
- Binary
- 1001101111100
- Octal
- 11574
- Hexadecimal
- 0x137C
- Base64
- E3w=
- One's complement
- 60,547 (16-bit)
- Scientific notation
- 4.988 × 10³
- As a duration
- 4,988 s = 1 hour, 23 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵δϡπηʹ
- Mayan (base 20)
- 𝋬·𝋩·𝋨
- Chinese
- 四千九百八十八
- Chinese (financial)
- 肆仟玖佰捌拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 4,988 = 8
- e — Euler's number (e)
- Digit 4,988 = 9
- φ — Golden ratio (φ)
- Digit 4,988 = 0
- √2 — Pythagoras's (√2)
- Digit 4,988 = 7
- ln 2 — Natural log of 2
- Digit 4,988 = 0
- γ — Euler-Mascheroni (γ)
- Digit 4,988 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4988, here are decompositions:
- 19 + 4969 = 4988
- 31 + 4957 = 4988
- 37 + 4951 = 4988
- 79 + 4909 = 4988
- 127 + 4861 = 4988
- 157 + 4831 = 4988
- 199 + 4789 = 4988
- 229 + 4759 = 4988
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 8D BC (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.19.124.
- Address
- 0.0.19.124
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.19.124
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 4,988 Hz is closest to:
- Concert pitch (A4 = 440 Hz): D♯8 (4978 Hz, +3¢)
- Scientific pitch (C4 = 256 Hz): D♯8 (4871 Hz, +41¢)
- Baroque pitch (A4 = 415 Hz): E8 (4974.4 Hz, +5¢)
The digit sequence 4988 first appears in π at position 1,776 of the decimal expansion (the 1,776ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.