30157145730 has 48 divisors (see below), whose sum is σ = 78745151160. Its totient is φ = 8007385344.

The previous prime is 30157145723. The next prime is 30157145761. The reversal of 30157145730 is 3754175103.

30157145730 is a `hidden beast` number, since 3 + 0 + 1 + 571 + 4 + 57 + 30 = 666.

30157145730 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 22553131329 + 7604014401 = 150177^2 + 87201^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 698085 + ... + 740024.

Almost surely, 2^30157145730 is an apocalyptic number.

30157145730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30157145730 is an abundant number, since it is smaller than the sum of its proper divisors (48588005430).

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

30157145730 is a wasteful number, since it uses less digits than its factorization.

30157145730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438355 (or 1438352 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The spelling of 30157145730 in words is "thirty billion, one hundred fifty-seven million, one hundred forty-five thousand, seven hundred thirty".