149,940
149,940 is a composite number, even.
149,940 (one hundred forty-nine thousand nine hundred forty) is an even 6-digit number. It is a composite number with 108 divisors, and factors as 2² × 3² × 5 × 7² × 17. Its proper divisors sum to 410,256, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x249B4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 27
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 49,941
- Square (n²)
- 22,482,003,600
- Cube (n³)
- 3,370,951,619,784,000
- Divisor count
- 108
- σ(n) — sum of divisors
- 560,196
- φ(n) — Euler's totient
- 32,256
- Sum of prime factors
- 46
Primality
Prime factorization: 2 2 × 3 2 × 5 × 7 2 × 17
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√149,940 = [387; (4, 1, 1, 8, 1, 1, 4, 774)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-nine thousand nine hundred forty
- Ordinal
- 149940th
- Binary
- 100100100110110100
- Octal
- 444664
- Hexadecimal
- 0x249B4
- Base64
- Akm0
- One's complement
- 4,294,817,355 (32-bit)
- Scientific notation
- 1.4994 × 10⁵
- As a duration
- 149,940 s = 1 day, 17 hours, 39 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμθϡμʹ
- Mayan (base 20)
- 𝋲·𝋮·𝋱·𝋠
- Chinese
- 一十四萬九千九百四十
- Chinese (financial)
- 壹拾肆萬玖仟玖佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 149940, here are decompositions:
- 19 + 149921 = 149940
- 29 + 149911 = 149940
- 31 + 149909 = 149940
- 41 + 149899 = 149940
- 47 + 149893 = 149940
- 67 + 149873 = 149940
- 73 + 149867 = 149940
- 79 + 149861 = 149940
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A4 A6 B4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.73.180.
- Address
- 0.2.73.180
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.73.180
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 149,940 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 149940 first appears in π at position 363,511 of the decimal expansion (the 363,511ordinal-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°.