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33097128 = 2331379047
BaseRepresentation
bin111111001000…
…0010110101000
32022021111201120
41332100112220
531433102003
63141215240
7551215041
oct176202650
968244646
1033097128
11177563a9
12b101520
136b1a8cc
1445778c8
152d8b853
hex1f905a8

33097128 has 16 divisors (see below), whose sum is σ = 82742880. Its totient is φ = 11032368.

The previous prime is 33097123. The next prime is 33097157. The reversal of 33097128 is 82179033.

It is not an unprimeable number, because it can be changed into a prime (33097123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689500 + ... + 689547.

It is an arithmetic number, because the mean of its divisors is an integer number (5171430).

Almost surely, 233097128 is an apocalyptic number.

It is an amenable number.

33097128 is an abundant number, since it is smaller than the sum of its proper divisors (49645752).

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

33097128 is a wasteful number, since it uses less digits than its factorization.

33097128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379056 (or 1379052 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 33097128 is about 5753.0103424207. The cubic root of 33097128 is about 321.0678130428.

The spelling of 33097128 in words is "thirty-three million, ninety-seven thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 1379047 2758094 4137141 5516188 8274282 11032376 16548564 33097128