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33089408 = 271171331
BaseRepresentation
bin111111000111…
…0011110000000
32022021010010122
41332032132000
531432330113
63141115412
7551153402
oct176163600
968233118
1033089408
1117750620
12b0b8b68
136b17241
144574b72
152d89408
hex1f8e780

33089408 has 64 divisors (see below), whose sum is σ = 73146240. Its totient is φ = 14784000.

The previous prime is 33089401. The next prime is 33089417. The reversal of 33089408 is 80498033.

It is a tau number, because it is divible by the number of its divisors (64).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33089401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99803 + ... + 100133.

It is an arithmetic number, because the mean of its divisors is an integer number (1142910).

Almost surely, 233089408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33089408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36573120).

33089408 is an abundant number, since it is smaller than the sum of its proper divisors (40056832).

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

33089408 is a wasteful number, since it uses less digits than its factorization.

33089408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 33089408 is about 5752.3393502122. The cubic root of 33089408 is about 321.0428477723.

The spelling of 33089408 in words is "thirty-three million, eighty-nine thousand, four hundred eight".

Divisors: 1 2 4 8 11 16 22 32 44 64 71 88 128 142 176 284 331 352 568 662 704 781 1136 1324 1408 1562 2272 2648 3124 3641 4544 5296 6248 7282 9088 10592 12496 14564 21184 23501 24992 29128 42368 47002 49984 58256 94004 99968 116512 188008 233024 258511 376016 466048 517022 752032 1034044 1504064 2068088 3008128 4136176 8272352 16544704 33089408