121,221
121,221 is a composite number, odd.
121,221 (one hundred twenty-one thousand two hundred twenty-one) is an odd 6-digit number. It is a composite number with 6 divisors, and factors as 3² × 13,469. Written other ways, in hexadecimal, 0x1D985.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 9
- Digit product
- 8
- Digital root
- 9
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 122,121
- Square (n²)
- 14,694,530,841
- Cube (n³)
- 1,781,285,723,076,861
- Divisor count
- 6
- σ(n) — sum of divisors
- 175,110
- φ(n) — Euler's totient
- 80,808
- Sum of prime factors
- 13,475
Primality
Prime factorization: 3 2 × 13469
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√121,221 = [348; (5, 1, 19, 16, 6, 1, 33, 1, 23, 24, 1, 4, 1, 3, 1, 6, 1, 6, 10, 1, 9, 1, 4, 15, …)]
Representations
- In words
- one hundred twenty-one thousand two hundred twenty-one
- Ordinal
- 121221st
- Binary
- 11101100110000101
- Octal
- 354605
- Hexadecimal
- 0x1D985
- Base64
- AdmF
- One's complement
- 4,294,846,074 (32-bit)
- Scientific notation
- 1.21221 × 10⁵
- As a duration
- 121,221 s = 1 day, 9 hours, 40 minutes, 21 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓍢𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρκασκαʹ
- Mayan (base 20)
- 𝋯·𝋣·𝋡·𝋡
- Chinese
- 一十二萬一千二百二十一
- Chinese (financial)
- 壹拾貳萬壹仟貳佰貳拾壹
Also seen as
UTF-8 encoding: F0 9D A6 85 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.217.133.
- Address
- 0.1.217.133
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.217.133
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 121,221 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 121221 first appears in π at position 635,929 of the decimal expansion (the 635,929ordinal-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°.