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28595144 = 2331115303
BaseRepresentation
bin110110100010…
…1001111001000
31222210210011102
41231011033020
524310021034
62500520532
7465024524
oct155051710
958723142
1028595144
1115160a56
1296b0148
135c02706
143b24d84
15279c97e
hex1b453c8

28595144 has 16 divisors (see below), whose sum is σ = 55345920. Its totient is φ = 13836240.

The previous prime is 28595137. The next prime is 28595159. The reversal of 28595144 is 44159582.

It is a junction number, because it is equal to n+sod(n) for n = 28595098 and 28595107.

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, 57404 + ... + 57899.

It is an arithmetic number, because the mean of its divisors is an integer number (3459120).

Almost surely, 228595144 is an apocalyptic number.

It is an amenable number.

28595144 is a deficient number, since it is larger than the sum of its proper divisors (26750776).

28595144 is a wasteful number, since it uses less digits than its factorization.

28595144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115340 (or 115336 counting only the distinct ones).

The product of its digits is 57600, while the sum is 38.

The square root of 28595144 is about 5347.4427533168. The cubic root of 28595144 is about 305.7952693798.

The spelling of 28595144 in words is "twenty-eight million, five hundred ninety-five thousand, one hundred forty-four".

Divisors: 1 2 4 8 31 62 124 248 115303 230606 461212 922424 3574393 7148786 14297572 28595144