155,748
155,748 is a composite number, even.
155,748 (one hundred fifty-five thousand seven hundred forty-eight) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 3 × 12,979. Its proper divisors sum to 207,692, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x26064.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 30
- Digit product
- 5,600
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 847,551
- Recamán's sequence
- a(206,368) = 155,748
- Square (n²)
- 24,257,439,504
- Cube (n³)
- 3,778,047,687,868,992
- Divisor count
- 12
- σ(n) — sum of divisors
- 363,440
- φ(n) — Euler's totient
- 51,912
- Sum of prime factors
- 12,986
Primality
Prime factorization: 2 2 × 3 × 12979
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√155,748 = [394; (1, 1, 1, 5, 1, 2, 3, 7, 1, 12, 16, 1, 2, 1, 1, 11, 1, 3, 5, 1, 10, 3, 1, 1, …)]
Representations
- In words
- one hundred fifty-five thousand seven hundred forty-eight
- Ordinal
- 155748th
- Binary
- 100110000001100100
- Octal
- 460144
- Hexadecimal
- 0x26064
- Base64
- AmBk
- One's complement
- 4,294,811,547 (32-bit)
- Scientific notation
- 1.55748 × 10⁵
- As a duration
- 155,748 s = 1 day, 19 hours, 15 minutes, 48 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρνεψμηʹ
- Mayan (base 20)
- 𝋳·𝋩·𝋧·𝋨
- Chinese
- 一十五萬五千七百四十八
- Chinese (financial)
- 壹拾伍萬伍仟柒佰肆拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 155748, here are decompositions:
- 7 + 155741 = 155748
- 17 + 155731 = 155748
- 29 + 155719 = 155748
- 31 + 155717 = 155748
- 41 + 155707 = 155748
- 59 + 155689 = 155748
- 127 + 155621 = 155748
- 139 + 155609 = 155748
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A6 81 A4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.96.100.
- Address
- 0.2.96.100
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.96.100
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 155,748 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 155748 first appears in π at position 1,100 of the decimal expansion (the 1,100ordinal-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°.