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28093683 = 313816781
BaseRepresentation
bin110101100101…
…0110011110011
31221212022021210
41223022303303
524142444213
62442051203
7460535532
oct153126363
957768253
1028093683
1114949222
1294a9b03
135a883a7
143a34319
1526ee0c3
hex1acacf3

28093683 has 8 divisors (see below), whose sum is σ = 37490896. Its totient is φ = 18712800.

The previous prime is 28093679. The next prime is 28093687. The reversal of 28093683 is 38639082.

It is an interprime number because it is at equal distance from previous prime (28093679) and next prime (28093687).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28093683 - 22 = 28093679 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28093687) 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, 753 + ... + 7533.

It is an arithmetic number, because the mean of its divisors is an integer number (4686362).

Almost surely, 228093683 is an apocalyptic number.

28093683 is a deficient number, since it is larger than the sum of its proper divisors (9397213).

28093683 is a wasteful number, since it uses less digits than its factorization.

28093683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8165.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 28093683 is about 5300.3474414419. The cubic root of 28093683 is about 303.9971830014.

The spelling of 28093683 in words is "twenty-eight million, ninety-three thousand, six hundred eighty-three".

Divisors: 1 3 1381 4143 6781 20343 9364561 28093683