148,990
148,990 is a composite number, even.
148,990 (one hundred forty-eight thousand nine hundred ninety) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 47 × 317. Written other ways, in hexadecimal, 0x245FE.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 31
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 99,841
- Recamán's sequence
- a(211,152) = 148,990
- Square (n²)
- 22,198,020,100
- Cube (n³)
- 3,307,283,014,699,000
- Divisor count
- 16
- σ(n) — sum of divisors
- 274,752
- φ(n) — Euler's totient
- 58,144
- Sum of prime factors
- 371
Primality
Prime factorization: 2 × 5 × 47 × 317
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√148,990 = [385; (1, 127, 1, 1, 1, 85, 9, 14, 5, 2, 2, 9, 8, 9, 2, 2, 5, 14, 9, 85, 1, 1, 1, 127, …)]
Period length 26 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-eight thousand nine hundred ninety
- Ordinal
- 148990th
- Binary
- 100100010111111110
- Octal
- 442776
- Hexadecimal
- 0x245FE
- Base64
- AkX+
- One's complement
- 4,294,818,305 (32-bit)
- Scientific notation
- 1.4899 × 10⁵
- As a duration
- 148,990 s = 1 day, 17 hours, 23 minutes, 10 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμηϡϟʹ
- Mayan (base 20)
- 𝋲·𝋬·𝋩·𝋪
- Chinese
- 一十四萬八千九百九十
- Chinese (financial)
- 壹拾肆萬捌仟玖佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 148990, here are decompositions:
- 29 + 148961 = 148990
- 41 + 148949 = 148990
- 59 + 148931 = 148990
- 131 + 148859 = 148990
- 137 + 148853 = 148990
- 173 + 148817 = 148990
- 197 + 148793 = 148990
- 227 + 148763 = 148990
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A4 97 BE (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.69.254.
- Address
- 0.2.69.254
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.69.254
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 148,990 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.