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28996527 = 371972673
BaseRepresentation
bin110111010011…
…1001110101111
32000120011202110
41232213032233
524410342102
62513255103
7501315660
oct156471657
960504673
1028996527
111540557a
129864493
136013311
143bcb367
15282b86c
hex1ba73af

28996527 has 16 divisors (see below), whose sum is σ = 46511360. Its totient is φ = 15697152.

The previous prime is 28996523. The next prime is 28996529. The reversal of 28996527 is 72569982.

It is not a de Polignac number, because 28996527 - 22 = 28996523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28996523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35938 + ... + 36735.

It is an arithmetic number, because the mean of its divisors is an integer number (2906960).

Almost surely, 228996527 is an apocalyptic number.

28996527 is a deficient number, since it is larger than the sum of its proper divisors (17514833).

28996527 is a wasteful number, since it uses less digits than its factorization.

28996527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72702.

The product of its digits is 544320, while the sum is 48.

The square root of 28996527 is about 5384.8423375248. The cubic root of 28996527 is about 307.2194175314.

The spelling of 28996527 in words is "twenty-eight million, nine hundred ninety-six thousand, five hundred twenty-seven".

Divisors: 1 3 7 19 21 57 133 399 72673 218019 508711 1380787 1526133 4142361 9665509 28996527