57102930 has 96 divisors (see below), whose sum is σ = 155570688. Its totient is φ = 14515200.

The previous prime is 57102911. The next prime is 57102931. The reversal of 57102930 is 3920175.

57102930 is a `hidden beast` number, since 571 + 0 + 2 + 93 + 0 = 666.

57102930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×57102930² = 6521489229169800, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 57102894 and 57102903.

It is not an unprimeable number, because it can be changed into a prime (57102931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 270525 + ... + 270735.

It is an arithmetic number, because the mean of its divisors is an integer number (1620528).

Almost surely, 2^57102930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57102930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77785344).

57102930 is an abundant number, since it is smaller than the sum of its proper divisors (98467758).

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

57102930 is a wasteful number, since it uses less digits than its factorization.

57102930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 57102930 is about 7556.6480664379. The cubic root of 57102930 is about 385.0816265898.

The spelling of 57102930 in words is "fifty-seven million, one hundred two thousand, nine hundred thirty".