101871930 has 32 divisors (see below), whose sum is σ = 244944000. Its totient is φ = 27115712.

The previous prime is 101871929. The next prime is 101871941. The reversal of 101871930 is 39178101.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 15136 + ... + 20804.

It is an arithmetic number, because the mean of its divisors is an integer number (7654500).

Almost surely, 2^101871930 is an apocalyptic number.

101871930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101871930 is an abundant number, since it is smaller than the sum of its proper divisors (143072070).

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

101871930 is a wasteful number, since it uses less digits than its factorization.

101871930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6278.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 101871930 is about 10093.1625370842. The cubic root of 101871930 is about 467.0372402352.

The spelling of 101871930 in words is "one hundred one million, eight hundred seventy-one thousand, nine hundred thirty".