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28976526 = 2321609807
BaseRepresentation
bin110111010001…
…0010110001110
32000112011022200
41232202112032
524404222101
62513022330
7501203445
oct156422616
960464280
1028976526
11153a1547
1298549a6
136007197
143bc3d5c
152825986
hex1ba258e

28976526 has 12 divisors (see below), whose sum is σ = 62782512. Its totient is φ = 9658836.

The previous prime is 28976503. The next prime is 28976567. The reversal of 28976526 is 62567982.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 804886 + ... + 804921.

It is an arithmetic number, because the mean of its divisors is an integer number (5231876).

Almost surely, 228976526 is an apocalyptic number.

28976526 is an abundant number, since it is smaller than the sum of its proper divisors (33805986).

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

28976526 is a wasteful number, since it uses less digits than its factorization.

28976526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609815 (or 1609812 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 28976526 is about 5382.9848597223. The cubic root of 28976526 is about 307.1487641399.

The spelling of 28976526 in words is "twenty-eight million, nine hundred seventy-six thousand, five hundred twenty-six".

Divisors: 1 2 3 6 9 18 1609807 3219614 4829421 9658842 14488263 28976526