102 (number)

January 2025 102 1, 2, 3, 6, 17, 34, 51, 102 102 (one hundred [and] two) is the natural number following 101 and preceding 103. In mathematics 102 is an abundant number and a semiperfect number. It is a sphenic number. The sum of Euler's totient function φ(x) over the first eighteen integers is 102. 102 is the first three-digit 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. 10264 + 1 is a prime number. There are 102 vertices in the Biggs–Smith graph. References Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 133 1 Category:Integers