149,040
149,040 is a composite number, even.
149,040 (one hundred forty-nine thousand forty) is an even 6-digit number. It is a composite number with 100 divisors, and factors as 2⁴ × 3⁴ × 5 × 23. Its proper divisors sum to 391,104, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x24630.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 40,941
- Recamán's sequence
- a(211,052) = 149,040
- Square (n²)
- 22,212,921,600
- Cube (n³)
- 3,310,613,835,264,000
- Divisor count
- 100
- σ(n) — sum of divisors
- 540,144
- φ(n) — Euler's totient
- 38,016
- Sum of prime factors
- 48
Primality
Prime factorization: 2 4 × 3 4 × 5 × 23
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√149,040 = [386; (17, 1, 1, 4, 1, 5, 1, 1, 3, 1, 1, 85, 4, 2, 1, 1, 1, 47, 1, 1, 1, 2, 4, 85, …)]
Period length 36 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-nine thousand forty
- Ordinal
- 149040th
- Binary
- 100100011000110000
- Octal
- 443060
- Hexadecimal
- 0x24630
- Base64
- AkYw
- One's complement
- 4,294,818,255 (32-bit)
- Scientific notation
- 1.4904 × 10⁵
- As a duration
- 149,040 s = 1 day, 17 hours, 24 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρμθμʹ
- Mayan (base 20)
- 𝋲·𝋬·𝋬·𝋠
- Chinese
- 一十四萬九千零四十
- Chinese (financial)
- 壹拾肆萬玖仟零肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 149040, here are decompositions:
- 7 + 149033 = 149040
- 13 + 149027 = 149040
- 19 + 149021 = 149040
- 29 + 149011 = 149040
- 43 + 148997 = 149040
- 79 + 148961 = 149040
- 83 + 148957 = 149040
- 107 + 148933 = 149040
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A4 98 B0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.70.48.
- Address
- 0.2.70.48
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.70.48
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 149,040 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 149040 first appears in π at position 90,018 of the decimal expansion (the 90,018ordinal-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°.