30100493 has 4 divisors (see below), whose sum is σ = 30145248. Its totient is φ = 30055740.

The previous prime is 30100471. The next prime is 30100507. The reversal of 30100493 is 39400103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39400103 = 3203 ⋅12301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30100493 is a prime.

It is a super-3 number, since 3×30100493³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30100403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21353 + ... + 22718.

It is an arithmetic number, because the mean of its divisors is an integer number (7536312).

Almost surely, 2^30100493 is an apocalyptic number.

It is an amenable number.

30100493 is a deficient number, since it is larger than the sum of its proper divisors (44755).

30100493 is an equidigital number, since it uses as much as digits as its factorization.

30100493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44754.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 30100493 is about 5486.3916192704. The cubic root of 30100493 is about 311.0698140432.

Adding to 30100493 its reverse (39400103), we get a palindrome (69500596).

The spelling of 30100493 in words is "thirty million, one hundred thousand, four hundred ninety-three".