149,988
149,988 is a composite number, even.
149,988 (one hundred forty-nine thousand nine hundred eighty-eight) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 29 × 431. Its proper divisors sum to 212,892, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x249E4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 39
- Digit product
- 20,736
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 889,941
- Square (n²)
- 22,496,400,144
- Cube (n³)
- 3,374,190,064,798,272
- Divisor count
- 24
- σ(n) — sum of divisors
- 362,880
- φ(n) — Euler's totient
- 48,160
- Sum of prime factors
- 467
Primality
Prime factorization: 2 2 × 3 × 29 × 431
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√149,988 = [387; (3, 1, 1, 6, 1, 1, 6, 1, 2, 2, 1, 2, 10, 1, 1, 5, 1, 7, 4, 1, 1, 22, 1, 11, …)]
Period length 56 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-nine thousand nine hundred eighty-eight
- Ordinal
- 149988th
- Binary
- 100100100111100100
- Octal
- 444744
- Hexadecimal
- 0x249E4
- Base64
- Aknk
- One's complement
- 4,294,817,307 (32-bit)
- Scientific notation
- 1.49988 × 10⁵
- As a duration
- 149,988 s = 1 day, 17 hours, 39 minutes, 48 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμθϡπηʹ
- Mayan (base 20)
- 𝋲·𝋮·𝋳·𝋨
- Chinese
- 一十四萬九千九百八十八
- Chinese (financial)
- 壹拾肆萬玖仟玖佰捌拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 149988, here are decompositions:
- 17 + 149971 = 149988
- 19 + 149969 = 149988
- 67 + 149921 = 149988
- 79 + 149909 = 149988
- 89 + 149899 = 149988
- 127 + 149861 = 149988
- 149 + 149839 = 149988
- 151 + 149837 = 149988
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A4 A7 A4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.73.228.
- Address
- 0.2.73.228
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.73.228
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 149,988 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 149988 first appears in π at position 448,398 of the decimal expansion (the 448,398ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.