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33028275 = 3527531187
BaseRepresentation
bin111110111111…
…1100010110011
32022011000021110
41331333202303
531423401100
63135524403
7550510230
oct175774263
968130243
1033028275
11177096a5
12b089703
136ac5477
14455a787
152d76250
hex1f7f8b3

33028275 has 48 divisors (see below), whose sum is σ = 63638784. Its totient is φ = 14801280.

The previous prime is 33028249. The next prime is 33028279. The reversal of 33028275 is 57282033.

It is not a de Polignac number, because 33028275 - 25 = 33028243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (33028279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27232 + ... + 28418.

It is an arithmetic number, because the mean of its divisors is an integer number (1325808).

Almost surely, 233028275 is an apocalyptic number.

33028275 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

33028275 is a deficient number, since it is larger than the sum of its proper divisors (30610509).

33028275 is a wasteful number, since it uses less digits than its factorization.

33028275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 33028275 is about 5747.0231424625. The cubic root of 33028275 is about 320.8450159723.

The spelling of 33028275 in words is "thirty-three million, twenty-eight thousand, two hundred seventy-five".

Divisors: 1 3 5 7 15 21 25 35 53 75 105 159 175 265 371 525 795 1113 1187 1325 1855 3561 3975 5565 5935 8309 9275 17805 24927 27825 29675 41545 62911 89025 124635 188733 207725 314555 440377 623175 943665 1321131 1572775 2201885 4718325 6605655 11009425 33028275