30730100 has 18 divisors (see below), whose sum is σ = 66684534. Its totient is φ = 12292000.

The previous prime is 30730099. The next prime is 30730109. The reversal of 30730100 is 103703.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3083536 + 27646564 = 1756^2 + 5258^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30730109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153551 + ... + 153750.

Almost surely, 2^30730100 is an apocalyptic number.

It is an amenable number.

30730100 is an abundant number, since it is smaller than the sum of its proper divisors (35954434).

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

30730100 is a wasteful number, since it uses less digits than its factorization.

30730100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307315 (or 307308 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 14.

The square root of 30730100 is about 5543.4736402368. The cubic root of 30730100 is about 313.2237305910.

Adding to 30730100 its reverse (103703), we get a palindrome (30833803).

The spelling of 30730100 in words is "thirty million, seven hundred thirty thousand, one hundred".