149,990
149,990 is a composite number, even.
149,990 (one hundred forty-nine thousand nine hundred ninety) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 53 × 283. Written other ways, in hexadecimal, 0x249E6.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 32
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 99,941
- Square (n²)
- 22,497,000,100
- Cube (n³)
- 3,374,325,044,999,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 276,048
- φ(n) — Euler's totient
- 58,656
- Sum of prime factors
- 343
Primality
Prime factorization: 2 × 5 × 53 × 283
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√149,990 = [387; (3, 1, 1, 69, 1, 5, 2, 2, 2, 5, 1, 69, 1, 1, 3, 774)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-nine thousand nine hundred ninety
- Ordinal
- 149990th
- Binary
- 100100100111100110
- Octal
- 444746
- Hexadecimal
- 0x249E6
- Base64
- Aknm
- One's complement
- 4,294,817,305 (32-bit)
- Scientific notation
- 1.4999 × 10⁵
- As a duration
- 149,990 s = 1 day, 17 hours, 39 minutes, 50 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμθϡϟʹ
- Mayan (base 20)
- 𝋲·𝋮·𝋳·𝋪
- Chinese
- 一十四萬九千九百九十
- Chinese (financial)
- 壹拾肆萬玖仟玖佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 149990, here are decompositions:
- 19 + 149971 = 149990
- 37 + 149953 = 149990
- 79 + 149911 = 149990
- 97 + 149893 = 149990
- 151 + 149839 = 149990
- 163 + 149827 = 149990
- 199 + 149791 = 149990
- 223 + 149767 = 149990
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A4 A7 A6 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.73.230.
- Address
- 0.2.73.230
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.73.230
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 149,990 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.