101882780 has 24 divisors (see below), whose sum is σ = 214534320. Its totient is φ = 40642560.

The previous prime is 101882779. The next prime is 101882791. The reversal of 101882780 is 87288101.

It is a self number, because there is not a number n which added to its sum of digits gives 101882780.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860 + ... + 14300.

It is an arithmetic number, because the mean of its divisors is an integer number (8938930).

Almost surely, 2^101882780 is an apocalyptic number.

101882780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101882780 is an abundant number, since it is smaller than the sum of its proper divisors (112651540).

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

101882780 is a wasteful number, since it uses less digits than its factorization.

101882780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13829 (or 13827 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 35.

The square root of 101882780 is about 10093.7000153561. The cubic root of 101882780 is about 467.0538204459.

The spelling of 101882780 in words is "one hundred one million, eight hundred eighty-two thousand, seven hundred eighty".