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28652142 = 234775357
BaseRepresentation
bin110110101001…
…1001001101110
31222220200100110
41231103021232
524313332032
62502040450
7465352641
oct155231156
958820313
1028652142
111519a862
129719126
135c2263c
143b3ba58
1527ae7cc
hex1b5326e

28652142 has 8 divisors (see below), whose sum is σ = 57304296. Its totient is φ = 9550712.

The previous prime is 28652131. The next prime is 28652161. The reversal of 28652142 is 24125682.

It is a sphenic number, since it is the product of 3 distinct primes.

28652142 is an admirable number.

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, 2387673 + ... + 2387684.

It is an arithmetic number, because the mean of its divisors is an integer number (7163037).

Almost surely, 228652142 is an apocalyptic number.

28652142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28652142 is a wasteful number, since it uses less digits than its factorization.

28652142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775362.

The product of its digits is 7680, while the sum is 30.

The square root of 28652142 is about 5352.7695635064. The cubic root of 28652142 is about 305.9983126055.

The spelling of 28652142 in words is "twenty-eight million, six hundred fifty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 4775357 9550714 14326071 28652142