Rahul Sharma (Editor)

102 (number)

Updated on
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
Covid-19
102  103 →
Factorization  2 × 3 × 17
Cardinal  one hundred two
Roman numeral  CII
Ordinal  102nd (one hundred and second)
Divisors  1, 2, 3, 6, 17, 34, 51, 102

102 (one hundred [and] two) is the natural number following 101 and preceding 103.

Contents

In mathematics

102 is an abundant number and semiperfect number. It is a sphenic number. It is the sum of four consecutive prime numbers (19 + 23 + 29 + 31).

The sum of Euler's totient function φ(x) over the first eighteen integers is 102.

102 is the third base 10 polydivisible number, since 1 is divisible by 1, 10 is divisible by 2 and 102 is divisible by 3. This also shows that 102 is a Harshad number. 102 is the first 3-digit number divisible by the numbers 3, 6, 17, 34 and 51.

In science

  • The atomic number of nobelium, an actinide.
  • In other fields

    102 is also:

  • The emergency telephone number for police in Ukraine and Belarus
  • The emergency telephone number for fire in Israel
  • The emergency telephone number for ambulance in parts of India
  • References

    102 (number) Wikipedia


    Topics
     
    B
    i
    Link
    H2
    L