102803280 has 80 divisors (see below), whose sum is σ = 320604480. Its totient is φ = 27249664.

The previous prime is 102803273. The next prime is 102803297. The reversal of 102803280 is 82308201.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 102803280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41764 + ... + 44156.

It is an arithmetic number, because the mean of its divisors is an integer number (4007556).

Almost surely, 2^102803280 is an apocalyptic number.

102803280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102803280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160302240).

102803280 is an abundant number, since it is smaller than the sum of its proper divisors (217801200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102803280 is a wasteful number, since it uses less digits than its factorization.

102803280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588 (or 2582 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 102803280 is about 10139.1952343369. The cubic root of 102803280 is about 468.4561991803.

The spelling of 102803280 in words is "one hundred two million, eight hundred three thousand, two hundred eighty".