102 (number)


102 is the natural number following 101 and preceding 103.

In mathematics

102 is an abundant number and semiperfect number. It is a sphenic number. It is the sum of four consecutive prime numbers.
The sum of Euler's totient function φ 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

102 is also: