30200312 has 8 divisors (see below), whose sum is σ = 56625600. Its totient is φ = 15100152.

The previous prime is 30200309. The next prime is 30200323. The reversal of 30200312 is 21300203.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×30200312³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30200293 and 30200302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1887512 + ... + 1887527.

It is an arithmetic number, because the mean of its divisors is an integer number (7078200).

Almost surely, 2^30200312 is an apocalyptic number.

It is an amenable number.

30200312 is a deficient number, since it is larger than the sum of its proper divisors (26425288).

30200312 is a wasteful number, since it uses less digits than its factorization.

30200312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3775045 (or 3775041 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 30200312 is about 5495.4810526468. The cubic root of 30200312 is about 311.4132903392.

Adding to 30200312 its reverse (21300203), we get a palindrome (51500515).

The spelling of 30200312 in words is "thirty million, two hundred thousand, three hundred twelve".