9,980
9,980 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 26
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 899
- Flips to (rotate 180°)
- 866
- Recamán's sequence
- a(7,255) = 9,980
- Square (n²)
- 99,600,400
- Cube (n³)
- 994,011,992,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 21,000
- φ(n) — Euler's totient
- 3,984
- Sum of prime factors
- 508
Primality
Prime factorization: 2 2 × 5 × 499
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- nine thousand nine hundred eighty
- Ordinal
- 9980th
- Binary
- 10011011111100
- Octal
- 23374
- Hexadecimal
- 0x26FC
- Base64
- Jvw=
- One's complement
- 55,555 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵θϡπʹ
- Mayan (base 20)
- 𝋡·𝋤·𝋳·𝋠
- Chinese
- 九千九百八十
- Chinese (financial)
- 玖仟玖佰捌拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 9,980 = 9
- e — Euler's number (e)
- Digit 9,980 = 1
- φ — Golden ratio (φ)
- Digit 9,980 = 1
- √2 — Pythagoras's (√2)
- Digit 9,980 = 7
- ln 2 — Natural log of 2
- Digit 9,980 = 5
- γ — Euler-Mascheroni (γ)
- Digit 9,980 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 9980, here are decompositions:
- 7 + 9973 = 9980
- 13 + 9967 = 9980
- 31 + 9949 = 9980
- 73 + 9907 = 9980
- 79 + 9901 = 9980
- 97 + 9883 = 9980
- 109 + 9871 = 9980
- 151 + 9829 = 9980
Showing the first eight; more decompositions exist.
UTF-8 encoding: E2 9B BC (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.38.252.
- Address
- 0.0.38.252
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.38.252
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 9980 first appears in π at position 8,012 of the decimal expansion (the 8,012ordinal-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.