100042930 has 24 divisors (see below), whose sum is σ = 194998212. Its totient is φ = 36938304.

The previous prime is 100042927. The next prime is 100042933. The reversal of 100042930 is 39240001.

It is an interprime number because it is at equal distance from previous prime (100042927) and next prime (100042933).

It can be written as a sum of positive squares in 6 ways, for example, as 6901129 + 93141801 = 2627^2 + 9651^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100042898 and 100042907.

It is not an unprimeable number, because it can be changed into a prime (100042933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27909 + ... + 31288.

Almost surely, 2^100042930 is an apocalyptic number.

100042930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100042930 is a deficient number, since it is larger than the sum of its proper divisors (94955282).

100042930 is a wasteful number, since it uses less digits than its factorization.

100042930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59230 (or 59217 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 100042930 is about 10002.1462696763. The cubic root of 100042930 is about 464.2252949949.

Adding to 100042930 its reverse (39240001), we get a palindrome (139282931).

The spelling of 100042930 in words is "one hundred million, forty-two thousand, nine hundred thirty".