101347780 has 12 divisors (see below), whose sum is σ = 212830380. Its totient is φ = 40539104.

The previous prime is 101347769. The next prime is 101347783. The reversal of 101347780 is 87743101.

It can be written as a sum of positive squares in 2 ways, for example, as 52794756 + 48553024 = 7266^2 + 6968^2 .

It is not an unprimeable number, because it can be changed into a prime (101347783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2533675 + ... + 2533714.

It is an arithmetic number, because the mean of its divisors is an integer number (17735865).

Almost surely, 2^101347780 is an apocalyptic number.

101347780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101347780 is an abundant number, since it is smaller than the sum of its proper divisors (111482600).

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

101347780 is a wasteful number, since it uses less digits than its factorization.

101347780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5067398 (or 5067396 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 101347780 is about 10067.1634535255. The cubic root of 101347780 is about 466.2348647537.

The spelling of 101347780 in words is "one hundred one million, three hundred forty-seven thousand, seven hundred eighty".