100650020 has 12 divisors (see below), whose sum is σ = 211365084. Its totient is φ = 40260000.

The previous prime is 100649993. The next prime is 100650023. The reversal of 100650020 is 20056001.

It can be written as a sum of positive squares in 2 ways, for example, as 43375396 + 57274624 = 6586^2 + 7568^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100649977 and 100650004.

It is not an unprimeable number, because it can be changed into a prime (100650023) 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, 2516231 + ... + 2516270.

It is an arithmetic number, because the mean of its divisors is an integer number (17613757).

Almost surely, 2^100650020 is an apocalyptic number.

100650020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100650020 is an abundant number, since it is smaller than the sum of its proper divisors (110715064).

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

100650020 is a wasteful number, since it uses less digits than its factorization.

100650020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5032510 (or 5032508 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 100650020 is about 10032.4483552122. The cubic root of 100650020 is about 465.1624206189.

The spelling of 100650020 in words is "one hundred million, six hundred fifty thousand, twenty".