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33528061 = 7471011009
BaseRepresentation
bin111111111100…
…1100011111101
32100002101212001
41333321203331
532040344221
63154342301
7554661310
oct177714375
970071761
1033528061
1117a20146
12b28a991
136c3bab8
14464a977
152e24391
hex1ff98fd

33528061 has 16 divisors (see below), whose sum is σ = 39559680. Its totient is φ = 27820800.

The previous prime is 33528049. The next prime is 33528067. The reversal of 33528061 is 16082533.

It is not a de Polignac number, because 33528061 - 223 = 25139453 is a prime.

It is a super-2 number, since 2×335280612 = 2248261748839442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33528067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32725 + ... + 33733.

It is an arithmetic number, because the mean of its divisors is an integer number (2472480).

Almost surely, 233528061 is an apocalyptic number.

It is an amenable number.

33528061 is a deficient number, since it is larger than the sum of its proper divisors (6031619).

33528061 is a wasteful number, since it uses less digits than its factorization.

33528061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 33528061 is about 5790.3420451645. The cubic root of 33528061 is about 322.4552701219.

The spelling of 33528061 in words is "thirty-three million, five hundred twenty-eight thousand, sixty-one".

Divisors: 1 7 47 101 329 707 1009 4747 7063 33229 47423 101909 331961 713363 4789723 33528061