30150020 has 12 divisors (see below), whose sum is σ = 63315084. Its totient is φ = 12060000.

The previous prime is 30150007. The next prime is 30150023. The reversal of 30150020 is 2005103.

It can be written as a sum of positive squares in 2 ways, for example, as 9647236 + 20502784 = 3106^2 + 4528^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30149983 and 30150010.

It is not an unprimeable number, because it can be changed into a prime (30150023) 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, 753731 + ... + 753770.

It is an arithmetic number, because the mean of its divisors is an integer number (5276257).

Almost surely, 2^30150020 is an apocalyptic number.

It is an amenable number.

30150020 is an abundant number, since it is smaller than the sum of its proper divisors (33165064).

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

30150020 is a wasteful number, since it uses less digits than its factorization.

30150020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507510 (or 1507508 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 30150020 is about 5490.9033865112. The cubic root of 30150020 is about 311.2403307695.

Adding to 30150020 its reverse (2005103), we get a palindrome (32155123).

The spelling of 30150020 in words is "thirty million, one hundred fifty thousand, twenty".