2,998
2,998 is a composite number, even.
2,998 (two thousand nine hundred ninety-eight) is an even 4-digit number. It is a composite number with 4 divisors, and factors as 2 × 1,499. Written other ways, in Roman numerals it is MMCMXCVIII and in binary, 101110110110.
Interestingness
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 28
- Digit product
- 1,296
- Digital root
- 1
- Palindrome
- No
- Bit width
- 12 bits
- Reversed
- 8,992
- Recamán's sequence
- a(1,419) = 2,998
- Square (n²)
- 8,988,004
- Cube (n³)
- 26,946,035,992
- Divisor count
- 4
- σ(n) — sum of divisors
- 4,500
- φ(n) — Euler's totient
- 1,498
- Sum of prime factors
- 1,501
Primality
Prime factorization: 2 × 1499
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√2,998 = [54; (1, 3, 15, 2, 1, 1, 5, 2, 17, 1, 3, 1, 4, 2, 2, 1, 1, 35, 1, 11, 5, 7, 1, 1, …)]
Period length 54 — the block in parentheses repeats forever.
Representations
- In words
- two thousand nine hundred ninety-eight
- Ordinal
- 2998th
- Roman numeral
- MMCMXCVIII
- Binary
- 101110110110
- Octal
- 5666
- Hexadecimal
- 0xBB6
- Base64
- C7Y=
- One's complement
- 62,537 (16-bit)
- Scientific notation
- 2.998 × 10³
- As a duration
- 2,998 s = 49 minutes, 58 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵βϡϟηʹ
- Mayan (base 20)
- 𝋧·𝋩·𝋲
- Chinese
- 二千九百九十八
- Chinese (financial)
- 貳仟玖佰玖拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 2,998 = 1
- e — Euler's number (e)
- Digit 2,998 = 7
- φ — Golden ratio (φ)
- Digit 2,998 = 5
- √2 — Pythagoras's (√2)
- Digit 2,998 = 6
- ln 2 — Natural log of 2
- Digit 2,998 = 1
- γ — Euler-Mascheroni (γ)
- Digit 2,998 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2998, here are decompositions:
- 29 + 2969 = 2998
- 41 + 2957 = 2998
- 59 + 2939 = 2998
- 71 + 2927 = 2998
- 89 + 2909 = 2998
- 101 + 2897 = 2998
- 137 + 2861 = 2998
- 179 + 2819 = 2998
Showing the first eight; more decompositions exist.
UTF-8 encoding: E0 AE B6 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.11.182.
- Address
- 0.0.11.182
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.11.182
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 2,998 Hz is closest to:
- Concert pitch (A4 = 440 Hz): F♯7 (2960 Hz, +22¢)
- Scientific pitch (C4 = 256 Hz): G7 (3068.5 Hz, -40¢)
- Baroque pitch (A4 = 415 Hz): G7 (2957.8 Hz, +23¢)
The digit sequence 2998 first appears in π at position 2,643 of the decimal expansion (the 2,643ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.