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28882629 = 331069727
BaseRepresentation
bin110111000101…
…1011011000101
32000100101112000
41232023123011
524343221004
62511015513
7500332626
oct156133305
960311460
1028882629
1115337a46
12980a599
135ca3519
143b9ba4d
152807c39
hex1b8b6c5

28882629 has 8 divisors (see below), whose sum is σ = 42789120. Its totient is φ = 19255068.

The previous prime is 28882621. The next prime is 28882657. The reversal of 28882629 is 92628882.

It is not a de Polignac number, because 28882629 - 23 = 28882621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28882621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534837 + ... + 534890.

It is an arithmetic number, because the mean of its divisors is an integer number (5348640).

Almost surely, 228882629 is an apocalyptic number.

It is an amenable number.

28882629 is a deficient number, since it is larger than the sum of its proper divisors (13906491).

28882629 is a wasteful number, since it uses less digits than its factorization.

28882629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069736 (or 1069730 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 28882629 is about 5374.2561345734. The cubic root of 28882629 is about 306.8166383402.

The spelling of 28882629 in words is "twenty-eight million, eight hundred eighty-two thousand, six hundred twenty-nine".

Divisors: 1 3 9 27 1069727 3209181 9627543 28882629