121,400
121,400 is a composite number, even.
121,400 (one hundred twenty-one thousand four hundred) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2³ × 5² × 607. Its proper divisors sum to 161,320, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1DA38.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 8
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 4,121
- Square (n²)
- 14,737,960,000
- Cube (n³)
- 1,789,188,344,000,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 282,720
- φ(n) — Euler's totient
- 48,480
- Sum of prime factors
- 623
Primality
Prime factorization: 2 3 × 5 2 × 607
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√121,400 = [348; (2, 2, 1, 5, 22, 3, 3, 2, 5, 1, 1, 2, 1, 16, 3, 1, 1, 2, 3, 8, 1, 6, 1, 14, …)]
Period length 52 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-one thousand four hundred
- Ordinal
- 121400th
- Binary
- 11101101000111000
- Octal
- 355070
- Hexadecimal
- 0x1DA38
- Base64
- Ado4
- One's complement
- 4,294,845,895 (32-bit)
- Scientific notation
- 1.214 × 10⁵
- As a duration
- 121,400 s = 1 day, 9 hours, 43 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ρκαυʹ
- Mayan (base 20)
- 𝋯·𝋣·𝋪·𝋠
- Chinese
- 一十二萬一千四百
- Chinese (financial)
- 壹拾貳萬壹仟肆佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 121400, here are decompositions:
- 31 + 121369 = 121400
- 43 + 121357 = 121400
- 67 + 121333 = 121400
- 73 + 121327 = 121400
- 79 + 121321 = 121400
- 109 + 121291 = 121400
- 211 + 121189 = 121400
- 229 + 121171 = 121400
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9D A8 B8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.218.56.
- Address
- 0.1.218.56
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.218.56
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 121,400 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 121400 first appears in π at position 914,920 of the decimal expansion (the 914,920ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.