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42872103 = 328815407
BaseRepresentation
bin1010001110001…
…0110100100111
32222200010110200
42203202310213
541433401403
64130521543
71030256361
oct243426447
988603420
1042872103
112222249a
12124362b3
138b60c11
14599dd31
153b6cca3
hex28e2d27

42872103 has 12 divisors (see below), whose sum is σ = 62008128. Its totient is φ = 28543680.

The previous prime is 42872099. The next prime is 42872117. The reversal of 42872103 is 30127824.

42872103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42872103 - 22 = 42872099 is a prime.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42879103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5226 + ... + 10632.

It is an arithmetic number, because the mean of its divisors is an integer number (5167344).

Almost surely, 242872103 is an apocalyptic number.

42872103 is a deficient number, since it is larger than the sum of its proper divisors (19136025).

42872103 is a wasteful number, since it uses less digits than its factorization.

42872103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6294 (or 6291 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 42872103 is about 6547.6792071695. The cubic root of 42872103 is about 349.9921168292.

Adding to 42872103 its reverse (30127824), we get a palindrome (72999927).

The spelling of 42872103 in words is "forty-two million, eight hundred seventy-two thousand, one hundred three".

Divisors: 1 3 9 881 2643 5407 7929 16221 48663 4763567 14290701 42872103