101052780 has 48 divisors (see below), whose sum is σ = 283557120. Its totient is φ = 26889408.

The previous prime is 101052779. The next prime is 101052803. The reversal of 101052780 is 87250101.

It is a self number, because there is not a number n which added to its sum of digits gives 101052780.

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 15 ways as a sum of consecutive naturals, for example, 31281 + ... + 34359.

It is an arithmetic number, because the mean of its divisors is an integer number (5907440).

Almost surely, 2^101052780 is an apocalyptic number.

101052780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101052780 is an abundant number, since it is smaller than the sum of its proper divisors (182504340).

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

101052780 is a wasteful number, since it uses less digits than its factorization.

101052780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638 (or 3636 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 101052780 is about 10052.5011812981. The cubic root of 101052780 is about 465.7820577634.

The spelling of 101052780 in words is "one hundred one million, fifty-two thousand, seven hundred eighty".