193101930 has 48 divisors (see below), whose sum is σ = 573790464. Its totient is φ = 44137440.

The previous prime is 193101917. The next prime is 193101947. The reversal of 193101930 is 39101391.

It is a junction number, because it is equal to n+sod(n) for n = 193101894 and 193101903.

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, 152626 + ... + 153885.

It is an arithmetic number, because the mean of its divisors is an integer number (11953968).

Almost surely, 2^193101930 is an apocalyptic number.

193101930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193101930 is an abundant number, since it is smaller than the sum of its proper divisors (380688534).

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

193101930 is a wasteful number, since it uses less digits than its factorization.

193101930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306531 (or 306528 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 27.

The square root of 193101930 is about 13896.1120461804. The cubic root of 193101930 is about 578.0013749004.

The spelling of 193101930 in words is "one hundred ninety-three million, one hundred one thousand, nine hundred thirty".