100852820 has 12 divisors (see below), whose sum is σ = 211790964. Its totient is φ = 40341120.

The previous prime is 100852819. The next prime is 100852831. The reversal of 100852820 is 28258001.

It can be written as a sum of positive squares in 2 ways, for example, as 51093904 + 49758916 = 7148^2 + 7054^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100852820.

It is a congruent number.

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, 2521301 + ... + 2521340.

It is an arithmetic number, because the mean of its divisors is an integer number (17649247).

Almost surely, 2^100852820 is an apocalyptic number.

100852820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100852820 is an abundant number, since it is smaller than the sum of its proper divisors (110938144).

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

100852820 is a wasteful number, since it uses less digits than its factorization.

100852820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042650 (or 5042648 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 100852820 is about 10042.5504728630. The cubic root of 100852820 is about 465.4746300325.

The spelling of 100852820 in words is "one hundred million, eight hundred fifty-two thousand, eight hundred twenty".