100280930 has 8 divisors (see below), whose sum is σ = 180505692. Its totient is φ = 40112368.

The previous prime is 100280923. The next prime is 100280933. The reversal of 100280930 is 39082001.

It can be written as a sum of positive squares in 2 ways, for example, as 97555129 + 2725801 = 9877^2 + 1651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 100280896 and 100280905.

It is not an unprimeable number, because it can be changed into a prime (100280933) 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, 5014037 + ... + 5014056.

Almost surely, 2^100280930 is an apocalyptic number.

100280930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100280930 is a deficient number, since it is larger than the sum of its proper divisors (80224762).

100280930 is a wasteful number, since it uses less digits than its factorization.

100280930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028100.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 100280930 is about 10014.0366486248. The cubic root of 100280930 is about 464.5931308213.

The spelling of 100280930 in words is "one hundred million, two hundred eighty thousand, nine hundred thirty".