101806230 has 64 divisors (see below), whose sum is σ = 252315648. Its totient is φ = 26275200.

The previous prime is 101806219. The next prime is 101806249. The reversal of 101806230 is 32608101.

It is a junction number, because it is equal to n+sod(n) for n = 101806197 and 101806206.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 144880 + ... + 145580.

It is an arithmetic number, because the mean of its divisors is an integer number (3942432).

Almost surely, 2^101806230 is an apocalyptic number.

101806230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101806230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126157824).

101806230 is an abundant number, since it is smaller than the sum of its proper divisors (150509418).

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

101806230 is a wasteful number, since it uses less digits than its factorization.

101806230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 101806230 is about 10089.9073335685. The cubic root of 101806230 is about 466.9368169376.

The spelling of 101806230 in words is "one hundred one million, eight hundred six thousand, two hundred thirty".