163,988
163,988 is a composite number, even.
163,988 (one hundred sixty-three thousand nine hundred eighty-eight) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 11 × 3,727. Written other ways, in hexadecimal, 0x28094.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 35
- Digit product
- 10,368
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 889,361
- Square (n²)
- 26,892,064,144
- Cube (n³)
- 4,409,975,814,846,272
- Divisor count
- 12
- σ(n) — sum of divisors
- 313,152
- φ(n) — Euler's totient
- 74,520
- Sum of prime factors
- 3,742
Primality
Prime factorization: 2 2 × 11 × 3727
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√163,988 = [404; (1, 20, 1, 8, 6, 1, 6, 1, 2, 2, 4, 5, 1, 2, 5, 2, 9, 3, 3, 14, 1, 49, 1, 2, …)]
Representations
- In words
- one hundred sixty-three thousand nine hundred eighty-eight
- Ordinal
- 163988th
- Binary
- 101000000010010100
- Octal
- 500224
- Hexadecimal
- 0x28094
- Base64
- AoCU
- One's complement
- 4,294,803,307 (32-bit)
- Scientific notation
- 1.63988 × 10⁵
- As a duration
- 163,988 s = 1 day, 21 hours, 33 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρξγϡπηʹ
- Chinese
- 一十六萬三千九百八十八
- Chinese (financial)
- 壹拾陸萬參仟玖佰捌拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 163988, here are decompositions:
- 7 + 163981 = 163988
- 61 + 163927 = 163988
- 79 + 163909 = 163988
- 127 + 163861 = 163988
- 199 + 163789 = 163988
- 367 + 163621 = 163988
- 421 + 163567 = 163988
- 571 + 163417 = 163988
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A8 82 94 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.128.148.
- Address
- 0.2.128.148
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.128.148
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 163,988 and was likely granted around 1874.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 163988 first appears in π at position 506,224 of the decimal expansion (the 506,224ordinal-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°.