100305860 has 12 divisors (see below), whose sum is σ = 210642348. Its totient is φ = 40122336.

The previous prime is 100305823. The next prime is 100305917. The reversal of 100305860 is 68503001.

It can be written as a sum of positive squares in 2 ways, for example, as 60590656 + 39715204 = 7784^2 + 6302^2 .

It is a super-2 number, since 2×100305860² = 20122531100679200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2507627 + ... + 2507666.

It is an arithmetic number, because the mean of its divisors is an integer number (17553529).

Almost surely, 2^100305860 is an apocalyptic number.

100305860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100305860 is an abundant number, since it is smaller than the sum of its proper divisors (110336488).

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

100305860 is a wasteful number, since it uses less digits than its factorization.

100305860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5015302 (or 5015300 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 100305860 is about 10015.2813240568. The cubic root of 100305860 is about 464.6316271639.

Adding to 100305860 its reverse (68503001), we get a palindrome (168808861).

The spelling of 100305860 in words is "one hundred million, three hundred five thousand, eight hundred sixty".