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28588901 = 1119373697
BaseRepresentation
bin110110100001…
…1101101100101
31222210110121012
41231003231211
524304321101
62500432005
7465000365
oct155035545
958713535
1028588901
11151572a0
1296a8605
135bcc913
143b229a5
15279abbb
hex1b43b65

28588901 has 16 divisors (see below), whose sum is σ = 33725760. Its totient is φ = 23950080.

The previous prime is 28588877. The next prime is 28588909. The reversal of 28588901 is 10988582.

It is a de Polignac number, because none of the positive numbers 2k-28588901 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28588909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5885 + ... + 9581.

It is an arithmetic number, because the mean of its divisors is an integer number (2107860).

Almost surely, 228588901 is an apocalyptic number.

It is an amenable number.

28588901 is a deficient number, since it is larger than the sum of its proper divisors (5136859).

28588901 is a wasteful number, since it uses less digits than its factorization.

28588901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764.

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 28588901 is about 5346.8589844880. The cubic root of 28588901 is about 305.7730136335.

The spelling of 28588901 in words is "twenty-eight million, five hundred eighty-eight thousand, nine hundred one".

Divisors: 1 11 19 37 209 407 703 3697 7733 40667 70243 136789 772673 1504679 2598991 28588901