981,201
981,201 is a composite number, odd.
981,201 (nine hundred eighty-one thousand two hundred one) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 3 × 13 × 139 × 181. Written other ways, in hexadecimal, 0xEF8D1.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 102,189
- Recamán's sequence
- a(324,009) = 981,201
- Square (n²)
- 962,755,402,401
- Cube (n³)
- 944,656,563,591,263,601
- Divisor count
- 16
- σ(n) — sum of divisors
- 1,426,880
- φ(n) — Euler's totient
- 596,160
- Sum of prime factors
- 336
Primality
Prime factorization: 3 × 13 × 139 × 181
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√981,201 = [990; (1, 1, 3, 1, 34, 1, 1, 2, 50, 2, 1, 1, 34, 1, 3, 1, 1, 1980)]
Period length 18 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred eighty-one thousand two hundred one
- Ordinal
- 981201st
- Binary
- 11101111100011010001
- Octal
- 3574321
- Hexadecimal
- 0xEF8D1
- Base64
- DvjR
- One's complement
- 4,293,986,094 (32-bit)
- Scientific notation
- 9.81201 × 10⁵
- As a duration
- 981,201 s = 11 days, 8 hours, 33 minutes, 21 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓏺
- Greek (Milesian)
- ͵ϡπασαʹ
- Chinese
- 九十八萬一千二百零一
- Chinese (financial)
- 玖拾捌萬壹仟貳佰零壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.14.248.209.
- Address
- 0.14.248.209
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.14.248.209
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 981,201 and was likely granted around 1910.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.