161,001
161,001 is a composite number, odd.
161,001 (one hundred sixty-one thousand one) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 3³ × 67 × 89. Written other ways, in hexadecimal, 0x274E9.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 9
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 100,161
- Flips to (rotate 180°)
- 100,191
- Recamán's sequence
- a(200,154) = 161,001
- Square (n²)
- 25,921,322,001
- Cube (n³)
- 4,173,358,763,483,001
- Divisor count
- 16
- σ(n) — sum of divisors
- 244,800
- φ(n) — Euler's totient
- 104,544
- Sum of prime factors
- 165
Primality
Prime factorization: 3 3 × 67 × 89
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√161,001 = [401; (4, 88, 1, 10, 1, 88, 4, 802)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- one hundred sixty-one thousand one
- Ordinal
- 161001st
- Binary
- 100111010011101001
- Octal
- 472351
- Hexadecimal
- 0x274E9
- Base64
- AnTp
- One's complement
- 4,294,806,294 (32-bit)
- Scientific notation
- 1.61001 × 10⁵
- As a duration
- 161,001 s = 1 day, 20 hours, 43 minutes, 21 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓏺
- Greek (Milesian)
- ͵ρξααʹ
- Chinese
- 一十六萬一千零一
- Chinese (financial)
- 壹拾陸萬壹仟零壹
Also seen as
UTF-8 encoding: F0 A7 93 A9 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.116.233.
- Address
- 0.2.116.233
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.116.233
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 161,001 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 161001 first appears in π at position 41,629 of the decimal expansion (the 41,629ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.