129,948
129,948 is a composite number, even.
129,948 (one hundred twenty-nine thousand nine hundred forty-eight) is an even 6-digit number. It is a composite number with 72 divisors, and factors as 2² × 3 × 7² × 13 × 17. Its proper divisors sum to 272,244, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1FB9C.
Interestingness
Properties
Primality
Prime factorization: 2 2 × 3 × 7 2 × 13 × 17
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√129,948 = [360; (2, 14, 4, 1, 2, 14, 2, 1, 4, 14, 2, 720)]
Period length 12 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-nine thousand nine hundred forty-eight
- Ordinal
- 129948th
- Binary
- 11111101110011100
- Octal
- 375634
- Hexadecimal
- 0x1FB9C
- Base64
- Afuc
- One's complement
- 4,294,837,347 (32-bit)
- Scientific notation
- 1.29948 × 10⁵
- As a duration
- 129,948 s = 1 day, 12 hours, 5 minutes, 48 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκθϡμηʹ
- Mayan (base 20)
- 𝋰·𝋤·𝋱·𝋨
- Chinese
- 一十二萬九千九百四十八
- Chinese (financial)
- 壹拾貳萬玖仟玖佰肆拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 129948, here are decompositions:
- 11 + 129937 = 129948
- 29 + 129919 = 129948
- 31 + 129917 = 129948
- 47 + 129901 = 129948
- 61 + 129887 = 129948
- 107 + 129841 = 129948
- 179 + 129769 = 129948
- 191 + 129757 = 129948
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9F AE 9C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.251.156.
- Address
- 0.1.251.156
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.251.156
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 129,948 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 129948 first appears in π at position 395,551 of the decimal expansion (the 395,551ordinal-suffix:st 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°.