149,820
149,820 is a composite number, even.
149,820 (one hundred forty-nine thousand eight hundred twenty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 3 × 5 × 11 × 227. Its proper divisors sum to 309,828, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2493C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 28,941
- Square (n²)
- 22,446,032,400
- Cube (n³)
- 3,362,864,574,168,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 459,648
- φ(n) — Euler's totient
- 36,160
- Sum of prime factors
- 250
Primality
Prime factorization: 2 2 × 3 × 5 × 11 × 227
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√149,820 = [387; (15, 5, 1, 1, 1, 2, 31, 1, 7, 5, 1, 1, 3, 3, 1, 192, 1, 3, 3, 1, 1, 5, 7, 1, …)]
Period length 32 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-nine thousand eight hundred twenty
- Ordinal
- 149820th
- Binary
- 100100100100111100
- Octal
- 444474
- Hexadecimal
- 0x2493C
- Base64
- Akk8
- One's complement
- 4,294,817,475 (32-bit)
- Scientific notation
- 1.4982 × 10⁵
- As a duration
- 149,820 s = 1 day, 17 hours, 37 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρμθωκʹ
- Mayan (base 20)
- 𝋲·𝋮·𝋫·𝋠
- Chinese
- 一十四萬九千八百二十
- Chinese (financial)
- 壹拾肆萬玖仟捌佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 149820, here are decompositions:
- 17 + 149803 = 149820
- 29 + 149791 = 149820
- 53 + 149767 = 149820
- 61 + 149759 = 149820
- 71 + 149749 = 149820
- 89 + 149731 = 149820
- 103 + 149717 = 149820
- 107 + 149713 = 149820
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A4 A4 BC (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.73.60.
- Address
- 0.2.73.60
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.73.60
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 149,820 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 149820 first appears in π at position 869,083 of the decimal expansion (the 869,083ordinal-suffix:rd 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°.