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33028488 = 2332458729
BaseRepresentation
bin111110111111…
…1100110001000
32022011000120100
41331333212020
531423402423
63135525400
7550510653
oct175774610
968130510
1033028488
1117709879
12b089860
136ac55ac
14455a89a
152d76343
hex1f7f988

33028488 has 24 divisors (see below), whose sum is σ = 89452350. Its totient is φ = 11009472.

The previous prime is 33028481. The next prime is 33028507. The reversal of 33028488 is 88482033.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17489124 + 15539364 = 4182^2 + 3942^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×330284882 = 2181762039132288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (33028481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229293 + ... + 229436.

Almost surely, 233028488 is an apocalyptic number.

It is an amenable number.

33028488 is an abundant number, since it is smaller than the sum of its proper divisors (56423862).

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

33028488 is a wasteful number, since it uses less digits than its factorization.

33028488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458741 (or 458734 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 33028488 is about 5747.0416737657. The cubic root of 33028488 is about 320.8457056828.

The spelling of 33028488 in words is "thirty-three million, twenty-eight thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 458729 917458 1376187 1834916 2752374 3669832 4128561 5504748 8257122 11009496 16514244 33028488