30100256 has 48 divisors (see below), whose sum is σ = 64431360. Its totient is φ = 13789440.

The previous prime is 30100249. The next prime is 30100283. The reversal of 30100256 is 65200103.

It is a super-2 number, since 2×30100256² = 1812050822531072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18050 + ... + 19646.

It is an arithmetic number, because the mean of its divisors is an integer number (1342320).

Almost surely, 2^30100256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30100256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32215680).

30100256 is an abundant number, since it is smaller than the sum of its proper divisors (34331104).

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

30100256 is a wasteful number, since it uses less digits than its factorization.

30100256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657 (or 1649 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30100256 is about 5486.3700203322. The cubic root of 30100256 is about 311.0689976253.

Adding to 30100256 its reverse (65200103), we get a palindrome (95300359).

The spelling of 30100256 in words is "thirty million, one hundred thousand, two hundred fifty-six".