100280034 has 12 divisors (see below), whose sum is σ = 217273446. Its totient is φ = 33426672.

The previous prime is 100280029. The next prime is 100280041. The reversal of 100280034 is 430082001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 91298025 + 8982009 = 9555^2 + 2997^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 5571113 = 100280034 / (1 + 0 + 0 + 2 + 8 + 0 + 0 + 3 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 100279989 and 100280016.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2785539 + ... + 2785574.

Almost surely, 2^100280034 is an apocalyptic number.

100280034 is an abundant number, since it is smaller than the sum of its proper divisors (116993412).

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

100280034 is a wasteful number, since it uses less digits than its factorization.

100280034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571121 (or 5571118 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 100280034 is about 10013.9919113209. The cubic root of 100280034 is about 464.5917471196.

The spelling of 100280034 in words is "one hundred million, two hundred eighty thousand, thirty-four".