193980530 has 16 divisors (see below), whose sum is σ = 355753944. Its totient is φ = 76128000.

The previous prime is 193980517. The next prime is 193980539. The reversal of 193980530 is 35089391.

It can be written as a sum of positive squares in 4 ways, for example, as 180445489 + 13535041 = 13433^2 + 3679^2 .

It is not an unprimeable number, because it can be changed into a prime (193980539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182471 + ... + 183530.

Almost surely, 2^193980530 is an apocalyptic number.

193980530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193980530 is a deficient number, since it is larger than the sum of its proper divisors (161773414).

193980530 is a wasteful number, since it uses less digits than its factorization.

193980530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366061.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 193980530 is about 13927.6893273795. The cubic root of 193980530 is about 578.8766703971.

The spelling of 193980530 in words is "one hundred ninety-three million, nine hundred eighty thousand, five hundred thirty".