130,020
130,020 is a composite number, even.
130,020 (one hundred thirty thousand twenty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 3 × 5 × 11 × 197. Its proper divisors sum to 269,148, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1FBE4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 6
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 20,031
- Recamán's sequence
- a(33,796) = 130,020
- Square (n²)
- 16,905,200,400
- Cube (n³)
- 2,198,014,156,008,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 399,168
- φ(n) — Euler's totient
- 31,360
- Sum of prime factors
- 220
Primality
Prime factorization: 2 2 × 3 × 5 × 11 × 197
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,020 = [360; (1, 1, 2, 1, 1, 14, 7, 2, 3, 1, 13, 2, 1, 2, 1, 10, 1, 1, 5, 1, 2, 3, 1, 1, …)]
Period length 52 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand twenty
- Ordinal
- 130020th
- Binary
- 11111101111100100
- Octal
- 375744
- Hexadecimal
- 0x1FBE4
- Base64
- Afvk
- One's complement
- 4,294,837,275 (32-bit)
- Scientific notation
- 1.3002 × 10⁵
- As a duration
- 130,020 s = 1 day, 12 hours, 7 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓎆𓎆
- Greek (Milesian)
- ͵ρλκʹ
- Mayan (base 20)
- 𝋰·𝋥·𝋡·𝋠
- Chinese
- 一十三萬零二十
- Chinese (financial)
- 壹拾參萬零貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 130020, here are decompositions:
- 17 + 130003 = 130020
- 53 + 129967 = 130020
- 61 + 129959 = 130020
- 67 + 129953 = 130020
- 83 + 129937 = 130020
- 101 + 129919 = 130020
- 103 + 129917 = 130020
- 127 + 129893 = 130020
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9F AF A4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.251.228.
- Address
- 0.1.251.228
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.251.228
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 130,020 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.