100278030 has 16 divisors (see below), whose sum is σ = 240667344. Its totient is φ = 26740800.

The previous prime is 100278023. The next prime is 100278049. The reversal of 100278030 is 30872001.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100277988 and 100278006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1671271 + ... + 1671330.

It is an arithmetic number, because the mean of its divisors is an integer number (15041709).

Almost surely, 2^100278030 is an apocalyptic number.

100278030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100278030 is an abundant number, since it is smaller than the sum of its proper divisors (140389314).

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

100278030 is a wasteful number, since it uses less digits than its factorization.

100278030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342611.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 100278030 is about 10013.8918508240. The cubic root of 100278030 is about 464.5886522926.

The spelling of 100278030 in words is "one hundred million, two hundred seventy-eight thousand, thirty".