101993190 has 48 divisors (see below), whose sum is σ = 265074768. Its totient is φ = 25104768.

The previous prime is 101993189. The next prime is 101993207. The reversal of 101993190 is 91399101.

101993190 = T₄ + T₅ + ... + T₈₄₈.

It is a super-2 number, since 2×101993190² = 20805221612752200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4989 + ... + 15128.

It is an arithmetic number, because the mean of its divisors is an integer number (5522391).

Almost surely, 2^101993190 is an apocalyptic number.

101993190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101993190 is an abundant number, since it is smaller than the sum of its proper divisors (163081578).

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

101993190 is a wasteful number, since it uses less digits than its factorization.

101993190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20153 (or 20140 counting only the distinct ones).

The product of its (nonzero) digits is 2187, while the sum is 33.

The square root of 101993190 is about 10099.1677874962. The cubic root of 101993190 is about 467.2224743823. Note that the first 3 decimals are identical.

The spelling of 101993190 in words is "one hundred one million, nine hundred ninety-three thousand, one hundred ninety".